From 68f8cd15710a027504ddf6b9380d63114921bd2e Mon Sep 17 00:00:00 2001
From: teahubxyz <boring+teahub@agentmail.to>
Date: Tue, 20 Oct 2026 22:29:58 +0000
Subject: [PATCH] gandora: moved out of teahubxyz/time ventures/gandora into
 its own repo

---
 STORAGE.md     |   60 +++
 brain.js       |  294 ++++++++++
 favicon.svg    |    1 +
 index.html     | 1383 ++++++++++++++++++++++++++++++++++++++++++++++++
 tools/build.sh |    3 +
 5 files changed, 1741 insertions(+)
 create mode 100644 STORAGE.md
 create mode 100644 brain.js
 create mode 100644 favicon.svg
 create mode 100644 index.html
 create mode 100644 tools/build.sh

diff --git a/STORAGE.md b/STORAGE.md
new file mode 100644
index 0000000..9d267ab
--- /dev/null
+++ b/STORAGE.md
@@ -0,0 +1,60 @@
+# gandora storage contract
+
+The page keeps everything through one object, `db`, in `index.html`. Today it is IndexedDB in the browser; a backend
+replaces it by implementing the same four calls and pointing `db` at the new implementation. Nothing else in the page
+touches storage (`brain.js` reads through `db.all()` too).
+
+```
+db.put(row, store = "tracks")      // create or replace, keyed by row.id
+db.all(store = "tracks")           // every row, newest first (tracks by `made`, stations by `last`)
+db.del(id, store = "tracks")
+db.open()                          // internal; a backend adapter can drop it
+```
+
+Two stores.
+
+## tracks
+
+```
+{
+  id:        "1760998800000-211979153",   // spec.made + "-" + hash32(title); stable, made by the page
+  made:      1760998800000,               // ms epoch, when the DJ wrote it
+  kept:      false,                       // pinned by KEEP (the only pin)
+  plays:     3,                           // play starts + loop passes
+  blob:      Blob,                        // the audio (FLAC from Venice, mp3 from Runware); a backend may return { url } instead
+  spec: {                                 // the song on paper: enough to re-render it anywhere
+    title, tags, lyrics, bpm, key, energy, line,   // what the DJ wrote (tags = the music prompt, <= 500 chars)
+    seed, station, stationId,                      // where it came from
+    reaction: "🔥 ❤️ \"less snare\" [skipped]",     // the listener's reactions, in order; words quoted, skips bracketed
+    guess: 0.71,                                   // the taste net's prediction when it was cooked (optional)
+    plays, id, made                                // mirrored for convenience
+  }
+}
+```
+
+## stations
+
+```
+{
+  id:      "s-1760998800000-211979153",   // "s-" + ms + hash32(seed)
+  seed:    "rainy trains",
+  name:    "Platform Nine",               // chosen by the DJ on the first track, then stable
+  taste:   { like: [...], avoid: [...], notes: [...] },   // last 8 of each, in words, fed to the DJ
+  history: [ { id, title, tags, bpm, key, energy, reaction, made } ],   // last 8 tracks, no blobs
+  made:    1760998800000,
+  last:    1761002400000,                 // touched on every play and reaction
+  played:  23
+}
+```
+
+## what a backend adds
+
+- identity: rows are per listener; `/user/station/track` links need the listener in the key
+- `blob` as a URL the `<audio>` element and the Web Audio analyser can load (same-origin or CORS-enabled)
+- sync: the page calls `db.all()` freely (library, taste, play counts), so cache on the client and keep `all()` cheap
+
+## what stays on the page
+
+The taste net (`brain.js`) trains in the browser from `db.all()` rows; it needs only `spec` + `kept` + `plays`.
+Share links (`?t=`) carry a spec, not an id, so they work with no backend at all; with one, a link can carry the id
+and the backend's audio instead of re-rendering.
diff --git a/brain.js b/brain.js
new file mode 100644
index 0000000..4ae74ef
--- /dev/null
+++ b/brain.js
@@ -0,0 +1,294 @@
+/* ============================================================
+   the taste brain — gandora's recommendation engine.
+   A tiny net (5 inputs → 8 neurons → like) retrained from scratch on every reaction and every play count;
+   its picture of the listener rides along in the DJ's prompt, and TASTE shows it: neurons firing, the heat map
+   of where it predicts liking, the listener's emoji on each track, and the five tracks that define a station.
+   (huebrain, with songs for swatches.)
+   ============================================================ */
+
+/* ---------- signals: every reaction and every play, as one signed weight per track ---------- */
+function reactionWeight(spec, row) {
+  const r = String(spec.reaction || "");
+  let w = 0;
+  for (const ch of r.replace(/"[^"]*"/g, "")) { if ("🔥❤️⚡🎸🎹🌧️".includes(ch) && ch !== "️") w += 1; if ("🚫😴".includes(ch)) w -= 1; }
+  if (/\[skipped\]/.test(r)) w -= 1.5;
+  if (/"[^"]*"/.test(r)) w += 0.3;                                   // words mean engagement, mildly warm
+  const plays = (row && row.plays) || spec.plays || 0;
+  if (plays > 1) w += Math.log2(plays) * 0.6;                        // on repeat: 4 plays ≈ a 🔥, 100 ≈ four of them
+  if (row && row.kept) w += 1.5;
+  return w;
+}
+
+/* ---------- the net ---------- */
+// inputs: 5 numbers (tempo, energy, key on the circle, minor) + WORDS hashed slots for the song's words: the DJ's tags
+// (full weight), the title (half) and the lyrics (a third). Signed hashing, so "wobble bass" and "harmonica" land in
+// slots of their own and the net can learn them; the words block is unit-normalised so a wordy song isn't louder.
+const NUM = 5, WORDS = 48, NIN = NUM + WORDS, NH = 12;
+const tokens = (s) => String(s || "").toLowerCase().replace(/\[[^\]]*\]/g, " ").split(/[^a-z0-9#+']+/).filter((w) => w.length > 1 && !STOP.has(w));
+const STOP = new Set(["the","and","a","an","of","to","in","on","with","for","is","it","my","me","i","you","we","your","our","this","that","at","by","or","as","be","are","was","so","no","not","do","oh","yeah","la","na","from","into","up","down","out","all","just","like","im","its","dont","can","will"]);
+function feats(spec) {
+  const bpm = Math.min(180, Math.max(60, +spec.bpm || 100)), en = Math.min(1, Math.max(0, Number.isFinite(+spec.energy) ? +spec.energy : 0.5));
+  const h = keyHue(spec.key) * Math.PI / 180, minor = /m(in|inor)?\b/i.test(spec.key || "") && !/maj/i.test(spec.key || "");
+  const x = new Array(NIN).fill(0);
+  x[0] = (bpm - 60) / 60 - 1; x[1] = en * 2 - 1; x[2] = Math.cos(h); x[3] = Math.sin(h); x[4] = minor ? 1 : -1;
+  const add = (words, w) => { for (const t of new Set(words)) { const hh = hash32("w:" + t); x[NUM + hh % WORDS] += ((hh >>> 16) & 1 ? 1 : -1) * w; } };
+  add(tokens(spec.tags), 1); add(tokens(spec.title), 0.5); add(tokens(spec.lyrics), 0.33);
+  let n = 0; for (let i = NUM; i < NIN; i++) n += x[i] * x[i]; n = Math.sqrt(n) || 1;
+  for (let i = NUM; i < NIN; i++) x[i] = x[i] / n * 1.5;
+  return x;
+}
+class Net {
+  constructor(seed = 7) {
+    const r = prng(seed), g = () => (r() - 0.5) * 0.8;
+    this.W1 = Array.from({ length: NH }, () => Array.from({ length: NIN }, g)); this.b1 = Array.from({ length: NH }, g);
+    this.W2 = Array.from({ length: NH }, g); this.b2 = 0; this.n = 0;
+  }
+  forward(x) {
+    const h = this.W1.map((w, i) => { let s = this.b1[i]; for (let j = 0; j < NIN; j++) s += w[j] * x[j]; return Math.tanh(s); });
+    let z = this.b2; for (let i = 0; i < NH; i++) z += h[i] * this.W2[i];
+    return { h, y: 1 / (1 + Math.exp(-z)) };
+  }
+  predict(spec) { return this.forward(feats(spec)).y; }
+  /* samples: [{ x, t (0|1), w }] — weighted logistic loss, plain SGD, a touch of L2 so a handful of taps stay smooth */
+  train(samples, epochs = 200, lr = 0.06) {
+    this.n = samples.length; if (!samples.length) return this;
+    const r = prng(99);
+    for (let e = 0; e < epochs; e++) {
+      const order = samples.map((s, i) => [r(), i]).sort((a, b) => a[0] - b[0]).map((a) => a[1]);
+      for (const i of order) {
+        const { x, t, w } = samples[i], { h, y } = this.forward(x), d = (y - t) * w * lr;
+        for (let k = 0; k < NH; k++) {
+          const dh = d * this.W2[k] * (1 - h[k] * h[k]);
+          this.W2[k] -= d * h[k] + lr * 2e-3 * this.W2[k];
+          const row = this.W1[k];
+          for (let j = 0; j < NIN; j++) row[j] -= dh * x[j] + lr * 2e-3 * row[j];
+          this.b1[k] -= dh;
+        }
+        this.b2 -= d;
+      }
+    }
+    return this;
+  }
+}
+/* a net for a set of library rows: warm → 1, cold → 0, sample weight by how loud the signal was */
+// tag taps (+word / -word, the last word of each wins; ~word lets it go) become word-level samples: the track's
+// numbers with just that word, so the net learns the word itself rather than the whole track
+function tagSignals(spec) {
+  const out = new Map();
+  for (const m of String(spec.reaction || "").matchAll(/(?:^|\s)([+\-~])([^\s]+)/g)) out.set(m[2].replace(/_/g, " "), m[1]);
+  return [...out].filter(([, s]) => s !== "~").map(([word, s]) => ({ word, like: s === "+" }));
+}
+function brainFor(rows) {
+  const samples = [];
+  for (const t of rows) {
+    const w = reactionWeight(t.spec, t);
+    if (Math.abs(w) >= 0.25) samples.push({ x: feats(t.spec), t: w > 0 ? 1 : 0, w: Math.min(3, Math.abs(w)) });
+    for (const { word, like } of tagSignals(t.spec)) samples.push({ x: feats({ bpm: t.spec.bpm, energy: t.spec.energy, key: t.spec.key, tags: word }), t: like ? 1 : 0, w: 1.5 });
+  }
+  if (samples.length < 3) return null;                               // not enough to say anything
+  return new Net(7).train(samples);
+}
+const brains = { all: null, station: null, stationId: "", rows: [] };
+async function rebuildBrains() {
+  const rows = await db.all(); brains.rows = rows;
+  brains.all = brainFor(rows);
+  brains.stationId = state.stationId;
+  brains.station = state.stationId ? brainFor(rows.filter((t) => t.spec.stationId === state.stationId)) : null;
+  return brains;
+}
+const brainNow = () => brains.station || brains.all;
+
+/* ---------- the net's picture in words, for the DJ ---------- */
+function tasteText() {
+  const net = brainNow(); if (!net) return "";
+  const rows = brains.rows.filter((t) => !state.stationId || t.spec.stationId === state.stationId || !brains.station);
+  // the grid is scored with the station's own wording, so the words block is live, not blank
+  const sample = rows.slice(0, 6).map((t) => t.spec.tags).filter(Boolean);
+  const cells = [];
+  for (const bpm of [70, 90, 110, 130, 150, 170]) for (const en of [0.2, 0.5, 0.8]) for (const key of ["C major", "A minor"]) {
+    let p = 0; for (const tags of sample.length ? sample : [""]) p += net.predict({ bpm, energy: en, key, tags }); p /= (sample.length || 1);
+    cells.push({ bpm, en, key, p });
+  }
+  cells.sort((a, b) => b.p - a.p);
+  const word = (c) => `~${c.bpm} bpm, ${c.en < 0.4 ? "calm" : c.en < 0.7 ? "mid" : "high"} energy, ${/minor/.test(c.key) ? "minor" : "major"} (${Math.round(c.p * 100)}%)`;
+  const top = cells.slice(0, 3).map(word).join("; "), low = cells.slice(-2).map(word).join("; ");
+  // which words the net warms to: score each tag word by the net's response when it is the only word present
+  const vocab = new Map(); for (const t of rows) { for (const w of tokens(t.spec.tags)) vocab.set(w, (vocab.get(w) || 0) + 1); for (const { word } of tagSignals(t.spec)) for (const w of tokens(word)) vocab.set(w, (vocab.get(w) || 0) + 2); }
+  const base = { bpm: cells[0].bpm, energy: cells[0].en, key: cells[0].key };
+  const p0 = net.predict({ ...base, tags: "" });
+  const scored = [...vocab.keys()].filter((w) => vocab.get(w) >= 2).map((w) => [w, net.predict({ ...base, tags: w }) - p0]).sort((a, b) => b[1] - a[1]);
+  const likes = scored.slice(0, 6).filter((s) => s[1] > 0.02).map((s) => s[0]).join(", "), dislikes = scored.slice(-4).filter((s) => s[1] < -0.02).map((s) => s[0]).join(", ");
+  const which = brains.station ? "this station" : "all their stations";
+  return `Taste model (a small net trained on the listener's reactions and play counts across ${which}, ${net.n} signals): most likely to land: ${top}. Least likely: ${low}.` +
+    (likes ? ` Words it warms to: ${likes}.` : "") + (dislikes ? ` Words it cools on: ${dislikes}.` : "") +
+    ` Aim near the likely region and lean on the warm words unless the listener's own words say otherwise; keep some variety.`;
+}
+const _djPromptBase = djPrompt;                                       // assignment, not a declaration: a declaration would hoist over this
+djPrompt = function () {
+  const base = _djPromptBase();
+  const tt = tasteText();
+  return tt ? base.replace("\nWrite the NEXT track.", `\n${tt}\n\nWrite the NEXT track.`) : base;
+};
+const _openStation = openStation;
+openStation = async function (seed, s) { await _openStation(seed, s); rebuildBrains().catch(() => {}); };
+
+/* ---------- plays: every start counts, and so does every pass of the loop ---------- */
+async function countPlay(spec) {
+  if (!spec || !spec.id) return;
+  const row = (await db.all()).find((t) => t.id === spec.id); if (!row) return;
+  row.plays = (row.plays || 0) + 1; row.spec.plays = row.plays; spec.plays = row.plays;
+  await db.put(row);
+  if (row.plays === 2 || row.plays === 4 || row.plays % 8 === 0) rebuildBrains().catch(() => {});
+}
+state.audio.addEventListener("play", () => { if (state.audio.currentTime < 1 && state.current && state.current.spec && state.current.spec.id) countPlay(state.current.spec).catch(() => {}); });
+let lastT = 0;
+state.audio.addEventListener("timeupdate", () => {                 // a loop wrapping round is another play
+  const t = state.audio.currentTime;
+  if (state.audio.loop && lastT > 20 && t < 2 && state.current) countPlay(state.current.spec).catch(() => {});
+  lastT = t;
+});
+
+/* ---------- the NEXT line carries the net's guess for the track in the oven ---------- */
+const _makeJob = makeJob;
+makeJob = function (spec) {
+  const net = brainNow(); if (net) spec.guess = net.predict(spec);
+  return _makeJob(spec);
+};
+const guessText = (spec) => spec && spec.guess != null ? ` · ${Math.round(spec.guess * 100)}% YOU` : "";
+(function () {
+  const next = $("#next");
+  const mo = new MutationObserver(() => {
+    const spec = state.nextJob && state.nextJob.spec; if (!spec || !spec.guess || next.textContent.includes("% YOU") || !next.textContent.startsWith("NEXT")) return;
+    next.textContent += guessText(spec);
+  });
+  mo.observe(next, { childList: true, characterData: true, subtree: true });
+})();
+
+/* ---------- TASTE: the brain and the map ---------- */
+function drawBrain(canvas, net, spec, pulse = 0) {
+  const ctx = canvas.getContext("2d"), W = canvas.width, H = canvas.height;
+  ctx.clearRect(0, 0, W, H); ctx.fillStyle = "#121216"; ctx.fillRect(0, 0, W, H);
+  const cols = [W * 0.16, W * 0.5, W * 0.86], ins = ["tempo", "energy", "key·x", "key·y", "minor", "words"];
+  const yI = (i) => H * (0.12 + 0.76 * i / 5), yH = (i) => H * (0.07 + 0.86 * i / (NH - 1)), yO = H / 2;
+  if (!net) { ctx.fillStyle = "#8a8a96"; ctx.font = `${W * 0.035}px -apple-system, system-ui, sans-serif`; ctx.textAlign = "center"; ctx.fillText("react to three tracks and the brain wakes up", W / 2, H / 2); return; }
+  const x = spec ? feats(spec) : new Array(NIN).fill(0), { h, y } = net.forward(x);
+  // the words block is shown as one input: its activation is how much of the song's wording the net recognises
+  let wordsAct = 0; for (let j = NUM; j < NIN; j++) wordsAct += Math.abs(x[j]); wordsAct = Math.min(1, wordsAct / 3);
+  const shown = [...x.slice(0, NUM), wordsAct];
+  const wIn = (k, j) => j < NUM ? net.W1[k][j] : net.W1[k].slice(NUM).reduce((s, v, i) => s + v * (x[NUM + i] || 0), 0) * 2;
+  const maxW = Math.max(1e-6, ...net.W1.flatMap((row, k) => ins.map((_, j) => Math.abs(wIn(k, j)))), ...net.W2.map(Math.abs));
+  for (let k = 0; k < NH; k++) {
+    for (let j = 0; j < 6; j++) { const w = wIn(k, j); ctx.strokeStyle = `hsl(${w > 0 ? 44 : 220} 70% 60% / ${0.06 + 0.6 * Math.abs(w) / maxW})`; ctx.lineWidth = 0.8 + 2 * Math.abs(w) / maxW; ctx.beginPath(); ctx.moveTo(cols[0], yI(j)); ctx.lineTo(cols[1], yH(k)); ctx.stroke(); }
+    const w = net.W2[k]; ctx.strokeStyle = `hsl(${w > 0 ? 44 : 220} 70% 60% / ${0.06 + 0.6 * Math.abs(w) / maxW})`; ctx.lineWidth = 0.8 + 2 * Math.abs(w) / maxW; ctx.beginPath(); ctx.moveTo(cols[1], yH(k)); ctx.lineTo(cols[2], yO); ctx.stroke();
+  }
+  const node = (cx, cy, r, a, label) => {
+    const glow = Math.abs(a) * (1 + pulse);
+    ctx.beginPath(); ctx.arc(cx, cy, r + 10 * glow, 0, Math.PI * 2); ctx.fillStyle = `hsl(${a >= 0 ? 44 : 220} 80% 65% / ${0.18 * glow})`; ctx.fill();
+    ctx.beginPath(); ctx.arc(cx, cy, r, 0, Math.PI * 2); ctx.fillStyle = `hsl(${a >= 0 ? 44 : 220} ${40 + 50 * Math.abs(a)}% ${35 + 35 * Math.abs(a)}%)`; ctx.fill();
+    if (label) { ctx.fillStyle = "#8a8a96"; ctx.font = `600 ${W * 0.026}px ui-monospace, Menlo, monospace`; ctx.textAlign = "right"; ctx.fillText(label, cx - r - 8, cy + 4); }
+  };
+  shown.forEach((v, j) => node(cols[0], yI(j), W * 0.018, v, ins[j]));
+  h.forEach((v, k) => node(cols[1], yH(k), W * 0.017, v));
+  node(cols[2], yO, W * 0.034, y * 2 - 1);
+  ctx.fillStyle = "#ededf0"; ctx.font = `600 ${W * 0.03}px ui-monospace, Menlo, monospace`; ctx.textAlign = "left"; ctx.fillText(`${Math.round(y * 100)}%`, cols[2] + W * 0.05, yO + 5);
+  ctx.fillStyle = "#8a8a96"; ctx.font = `${W * 0.024}px ui-monospace, Menlo, monospace`; ctx.fillText(spec ? "would like this" : "", cols[2] + W * 0.05, yO + 5 + W * 0.03);
+}
+function drawTaste(rows, title, net) {
+  const c = $("#tasteMap"), ctx = c.getContext("2d"), W = c.width, H = c.height, pad = 70;
+  const X = (bpm) => pad + (Math.min(180, Math.max(60, bpm)) - 60) / 120 * (W - 2 * pad);
+  const Y = (en) => H - pad - Math.min(1, Math.max(0, en)) * (H - 2 * pad);
+  const pts = rows.map((t) => ({ x: X(+t.spec.bpm || 100), y: Y(+t.spec.energy || 0.5), w: reactionWeight(t.spec, t), hue: keyHue(t.spec.key), minor: /m(in|inor)?\b/i.test(t.spec.key || "") && !/maj/i.test(t.spec.key || ""), t }));
+  ctx.fillStyle = "#121216"; ctx.fillRect(0, 0, W, H);
+  // the field: the net's prediction, in the station's usual key; lit gold where it says yes, blue where no
+  const keys = {}; for (const t of rows) keys[t.spec.key] = (keys[t.spec.key] || 0) + 1;
+  const key = Object.entries(keys).sort((a, b) => b[1] - a[1])[0]?.[0] || "A minor";
+  const tagSample = rows.slice(0, 4).map((t) => t.spec.tags).filter(Boolean); if (!tagSample.length) tagSample.push("");
+  const cell = 18;
+  for (let gy = pad; gy < H - pad; gy += cell) for (let gx = pad; gx < W - pad; gx += cell) {
+    let v = 0;
+    if (net) { let p = 0; for (const tags of tagSample) p += net.predict({ bpm: 60 + (gx - pad) / (W - 2 * pad) * 120, energy: (H - pad - gy) / (H - 2 * pad), key, tags }); v = p / tagSample.length * 2 - 1; }
+    else { let like = 0, heard = 0; for (const p of pts) { const k = Math.exp(-((p.x - gx) ** 2 + (p.y - gy) ** 2) / 16200); like += k * p.w; heard += k; } if (heard < 0.02) continue; v = Math.tanh(like / 1.5); }
+    if (Math.abs(v) < 0.06) continue;
+    ctx.fillStyle = v > 0 ? `hsl(44 60% 60% / ${0.5 * Math.abs(v)})` : `hsl(220 30% 45% / ${0.45 * Math.abs(v)})`;
+    ctx.fillRect(gx, gy, cell, cell);
+  }
+  ctx.strokeStyle = "#232329"; ctx.lineWidth = 2; ctx.strokeRect(pad, pad, W - 2 * pad, H - 2 * pad);
+  ctx.fillStyle = "#8a8a96"; ctx.font = `600 ${W * 0.018}px ui-monospace, Menlo, monospace`; ctx.textAlign = "center";
+  for (const b of [60, 90, 120, 150, 180]) ctx.fillText(b + "", X(b), H - pad + 34);
+  ctx.textAlign = "right"; for (const e of [0, 0.5, 1]) ctx.fillText(e === 0 ? "calm" : e === 1 ? "wild" : "·", pad - 14, Y(e) + 6);
+  // the points, with the listener's emoji over them
+  ctx.textAlign = "center";
+  for (const p of pts) {
+    const r = (W * 0.012) * (1 + Math.min(3, Math.abs(p.w)) * 0.3);
+    ctx.beginPath(); ctx.arc(p.x, p.y, r, 0, Math.PI * 2);
+    ctx.fillStyle = `hsl(${p.hue} ${p.minor ? 55 : 80}% ${p.minor ? 48 : 62}% / .9)`; ctx.fill();
+    if (Math.abs(p.w) >= 0.25) { ctx.lineWidth = 3; ctx.strokeStyle = p.w > 0 ? "hsl(44 80% 70%)" : "hsl(220 40% 60%)"; ctx.stroke(); }
+    if (p.t.kept) { ctx.beginPath(); ctx.arc(p.x, p.y, r + 7, 0, Math.PI * 2); ctx.lineWidth = 1.5; ctx.strokeStyle = "hsl(44 80% 70% / .7)"; ctx.stroke(); }
+    const em = reactionEmoji(p.t.spec.reaction);
+    const tg = tagSignals(p.t.spec), tagMark = tg.length ? ` ${tg.filter((s) => s.like).length}▲${tg.filter((s) => !s.like).length}▼` : "";
+    const tag = [...em].slice(0, 4).join("") + ((p.t.plays || 0) > 1 ? `×${p.t.plays}` : "") + tagMark;
+    if (tag) { ctx.font = `${W * 0.024}px -apple-system, system-ui, sans-serif`; ctx.fillStyle = "#ededf0"; ctx.fillText(tag, p.x, p.y - r - 8); }
+  }
+  // the track in the oven, as a hollow mark
+  const nx = state.nextJob && state.nextJob.spec;
+  if (nx && rows.some((t) => t.spec.stationId === nx.stationId || title === "ALL")) {
+    ctx.beginPath(); ctx.arc(X(+nx.bpm || 100), Y(+nx.energy || 0.5), W * 0.014, 0, Math.PI * 2); ctx.setLineDash([4, 4]); ctx.lineWidth = 2; ctx.strokeStyle = "#ededf0"; ctx.stroke(); ctx.setLineDash([]);
+  }
+  const warm = pts.filter((p) => p.w >= 0.25).length, cold = pts.filter((p) => p.w <= -0.25).length;
+  $("#tasteNote").textContent = !pts.length ? "Nothing heard here yet." :
+    `${title}: ${pts.length} tracks · ${warm} warm, ${cold} cold` + (net ? ` · ${net.n} signals in the brain` : " · react to a few tracks and the brain wakes up");
+}
+function drawPalette(rows, net) {
+  const box = $("#tastePalette"); box.innerHTML = "";
+  const scored = rows.map((t) => ({ t, s: (net ? net.predict(t.spec) : 0.5) + reactionWeight(t.spec, t) * 0.15 })).sort((a, b) => b.s - a.s).slice(0, 5);
+  if (!scored.length) return;
+  box.append(Object.assign(document.createElement("h3"), { textContent: "THE FIVE" }));
+  const row = document.createElement("div"); row.className = "row";
+  for (const { t } of scored) {
+    const d = document.createElement("div"); d.className = "s";
+    const c = document.createElement("canvas"); c.width = c.height = 144; drawCover(c, t.spec);
+    d.append(c, Object.assign(document.createElement("b"), { textContent: t.spec.title }));
+    d.addEventListener("click", () => { $("#taste").classList.add("hidden"); state.audio.pause(); $("#player").classList.remove("hidden"); $("#seed").classList.add("hidden"); playJob({ id: ++seq, spec: { ...t.spec }, blob: t.blob, err: null, done: Promise.resolve() }); });
+    row.append(d);
+  }
+  box.append(row);
+}
+let brainPulse = 0;
+async function openTaste() {
+  await rebuildBrains();
+  const rows = brains.rows, stations = await db.all("stations"), byId = Object.fromEntries(stations.map((s) => [s.id, s]));
+  const tabs = $("#tasteTabs"); tabs.innerHTML = "";
+  const groups = [["all", "ALL", "", rows]];
+  const seen = new Map();
+  for (const t of rows) { const k = t.spec.stationId || "seed:" + t.spec.seed; if (!seen.has(k)) seen.set(k, []); seen.get(k).push(t); }
+  for (const [k, list] of seen) { const s = byId[k]; groups.push([k, ((s && s.name) || list[0].spec.seed).toUpperCase(), (s && s.seed) || list[0].spec.seed, list]); }
+  let pick = groups.find((g) => g[0] === state.stationId) || groups[0];
+  const show = () => {
+    for (const b of tabs.children) b.classList.toggle("on", b.dataset.k === pick[0]);
+    const net = pick[0] === "all" ? brains.all : (brainFor(pick[3]) || brains.all);
+    drawTaste(pick[3], pick[1], net);
+    drawBrain($("#brainMap"), net, state.current && state.current.spec, brainPulse);
+    drawPalette(pick[3], net);
+  };
+  for (const g of groups) {
+    const b = document.createElement("button"); b.dataset.k = g[0];
+    if (g[2]) { const c = document.createElement("canvas"); c.width = c.height = 44; drawCover(c, { seed: g[2], title: "", tags: "", bpm: 100, key: KEYS[hash32(g[2]) % 12], energy: 0.5 }); b.append(c); }
+    b.append(document.createTextNode(g[1] + " · " + g[3].length));
+    b.addEventListener("click", () => { pick = g; show(); });
+    tabs.append(b);
+  }
+  show(); $("#taste").classList.remove("hidden");
+  openTaste.redraw = show;
+}
+/* a reaction while TASTE is open: retrain, and let the neurons flare */
+const _react = react;
+react = async function (emoji, text) {
+  await _react(emoji, text);
+  rebuildBrains().then(() => {
+    if ($("#taste").classList.contains("hidden") || !openTaste.redraw) return;
+    let t0 = performance.now();
+    const flare = () => { brainPulse = Math.max(0, 1 - (performance.now() - t0) / 700) * 2; openTaste.redraw(); if (brainPulse > 0) requestAnimationFrame(flare); };
+    flare();
+  }).catch(() => {});
+};
+rebuildBrains().catch(() => {});
diff --git a/favicon.svg b/favicon.svg
new file mode 100644
index 0000000..976ca42
--- /dev/null
+++ b/favicon.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"><rect width="64" height="64" rx="14" fill="#0b0b0e"/><g fill="none" stroke="#e9d8a6" stroke-width="2"><circle cx="32" cy="32" r="24" opacity=".3"/><circle cx="32" cy="32" r="16" opacity=".6"/></g><circle cx="32" cy="32" r="6" fill="#e9d8a6"/></svg>
diff --git a/index.html b/index.html
new file mode 100644
index 0000000..be0d7d6
--- /dev/null
+++ b/index.html
@@ -0,0 +1,1383 @@
+<!doctype html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover">
+<meta http-equiv="Content-Security-Policy" content="default-src 'self'; connect-src https://api.venice.ai https://inference.yolopreneur.lol; script-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline'; img-src 'self' data: blob:; media-src blob:; font-src 'self'">
+<title>gandora</title>
+<meta name="description" content="Type a seed. Get a station. Every song is made for you as it plays, and every cover is drawn from the song's own settings.">
+<link rel="icon" href="favicon.svg">
+<style>
+:root{
+  --bg:#0b0b0e; --ink:#ededf0; --dim:#8a8a96; --line:#232329; --card:#121216;
+  --acc:#e9d8a6; --font:ui-monospace,"SF Mono",Menlo,Consolas,monospace; --sans:-apple-system,"Inter",system-ui,sans-serif;
+}
+*{box-sizing:border-box} html,body{height:100%}
+body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.5 var(--sans);-webkit-font-smoothing:antialiased;overflow-x:hidden}
+a{color:inherit}
+button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
+input,textarea{font:inherit;color:inherit}
+.hidden{display:none!important}
+
+/* ---------- seed screen ---------- */
+#seed{min-height:100dvh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px 16px;position:relative}
+#seed .wordmark{position:absolute;top:18px;left:0;right:0;text-align:center;font:600 13px var(--font);letter-spacing:.28em;color:var(--dim)}
+#seed form{width:min(680px,100%);text-align:center}
+#seedIn{width:100%;background:transparent;border:0;border-bottom:1px solid var(--line);padding:14px 4px;text-align:center;font:400 clamp(24px,5vw,38px)/1.2 var(--sans);outline:none;caret-color:var(--acc);transition:border-color .3s}
+#seedIn:focus{border-color:var(--acc)}
+#seedIn::placeholder{color:#3a3a44}
+#seed .hint{margin-top:18px;color:var(--dim);font-size:13px;min-height:1.5em}
+#seedCover{width:120px;height:120px;margin:0 auto 28px;border-radius:14px;overflow:hidden;background:var(--card);opacity:0;transform:scale(.92);transition:opacity .5s,transform .5s}
+#seedCover.on{opacity:1;transform:none}
+#seedCover canvas{width:100%;height:100%;display:block}
+#nowRow{position:absolute;top:44px;left:0;right:0;display:flex;justify-content:center}
+#now{display:flex;align-items:center;gap:10px;background:var(--card);border:1px solid var(--line);border-radius:999px;padding:6px 14px 6px 6px;font-size:13px;cursor:pointer;max-width:calc(100% - 32px)}
+#now canvas{width:28px;height:28px;border-radius:50%;display:block}
+#now span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
+#now b{font:600 11px var(--font);letter-spacing:.14em;color:var(--dim);margin-left:4px}
+#stations{width:min(680px,100%);margin-top:40px}
+#stations h3{font:600 11px var(--font);letter-spacing:.2em;color:var(--dim);margin:0 0 12px;text-align:center}
+#stations .row{display:flex;gap:14px;overflow-x:auto;padding:4px 4px 10px;scrollbar-width:none;justify-content:safe center}
+#stations .s{flex:0 0 96px;cursor:pointer;text-align:center}
+#stations .s canvas{width:72px;height:72px;border-radius:50%;display:block;margin:0 auto 6px;background:var(--card)}
+#stations .s.on canvas{outline:2px solid var(--acc);outline-offset:3px}
+#stations .s b{display:block;font-size:12px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
+#stations .s small{color:var(--dim);font-size:11px}
+#keyRow{position:absolute;bottom:18px;left:0;right:0;text-align:center;font-size:12px;color:var(--dim);display:flex;gap:18px;justify-content:center;flex-wrap:wrap}
+#keyRow button{text-decoration:underline;text-underline-offset:3px}
+#keyRow .nav{font:600 11px var(--font);letter-spacing:.18em;text-decoration:none}
+#keyBox{position:absolute;bottom:44px;left:50%;transform:translateX(-50%);width:min(420px,calc(100% - 32px));background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px;font-size:13px}
+#keyBox input{width:100%;margin:8px 0;background:#0a0a0d;border:1px solid var(--line);border-radius:8px;padding:9px 10px;font-family:var(--font);font-size:12px;outline:none}
+#keyBox .row{display:flex;gap:8px;justify-content:flex-end}
+#keyBox .row button{padding:6px 12px;border-radius:8px;border:1px solid var(--line)}
+#keyBox .row button.go{background:var(--acc);color:#111;border-color:var(--acc)}
+#keyBox p{margin:0 0 4px;color:var(--dim)}
+#keyBox label{display:block;margin-top:6px;color:var(--dim)}
+
+/* ---------- player ---------- */
+#player{min-height:100dvh;display:grid;grid-template-rows:auto 1fr auto;padding:14px 16px calc(16px + env(safe-area-inset-bottom))}
+#top{display:flex;align-items:center;justify-content:space-between;font:600 12px var(--font);letter-spacing:.2em;color:var(--dim)}
+#stage .station{font:600 11px var(--font);letter-spacing:.22em;color:var(--dim);max-width:min(78vw,380px);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;cursor:pointer;text-transform:uppercase;margin-bottom:-4px}
+#stage .station:hover{color:var(--acc)}
+#stations .s{position:relative}
+#stations .s .dots{position:absolute;top:-4px;right:2px;width:22px;height:22px;border-radius:50%;background:var(--card);border:1px solid var(--line);color:var(--dim);font-size:12px;line-height:1}
+#scrim{position:fixed;inset:0;z-index:5;background:rgba(0,0,0,.25)}
+#stationSheet,#picker,#tapePick{z-index:6}
+#stationSheet{position:fixed;left:50%;bottom:0;transform:translateX(-50%);width:min(480px,100%);background:var(--card);border:1px solid var(--line);border-bottom:0;border-radius:18px 18px 0 0;padding:14px 14px calc(14px + env(safe-area-inset-bottom));z-index:6;box-shadow:0 -20px 60px rgba(0,0,0,.6)}
+#stationSheet h4{font:600 10px var(--font);letter-spacing:.2em;color:var(--dim);margin:0 0 10px}
+#stationSheet label{display:block;color:var(--dim);font-size:12px;margin:8px 0 4px}
+#stationSheet input{width:100%;background:#0a0a0d;border:1px solid var(--line);border-radius:10px;padding:10px 12px;outline:none}
+#stationSheet .row{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
+#stationSheet .row button{padding:9px 14px;border-radius:999px;border:1px solid var(--line);font:600 11px var(--font);letter-spacing:.14em}
+#stationSheet .row button.go{background:var(--acc);color:#111;border-color:var(--acc)}
+#stationSheet .row button.bad{color:hsl(0 60% 70%);border-color:hsl(0 30% 35%)}
+#top button{color:var(--dim);letter-spacing:.08em}
+#stage{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;padding:14px 0}
+#cover{width:min(78vw,380px);aspect-ratio:1;position:relative;perspective:1200px}
+#cover .card{position:absolute;inset:0;transform-style:preserve-3d;transition:transform .7s cubic-bezier(.4,.1,.2,1)}
+#cover.flipped .card{transform:rotateY(180deg)}
+#cover .face{position:absolute;inset:0;border-radius:18px;overflow:hidden;background:var(--card);box-shadow:0 30px 80px -30px rgba(0,0,0,.9);backface-visibility:hidden;-webkit-backface-visibility:hidden}
+#cover .back{transform:rotateY(180deg);background:#121216;border:1px solid var(--line);display:flex;flex-direction:column}
+#cover canvas{width:100%;height:100%;display:block}
+#cover .back .backTitle{font:600 10px var(--font);letter-spacing:.22em;color:var(--dim);padding:14px 16px 6px;text-align:center}
+#cover .veil{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(11,11,14,.55);backdrop-filter:blur(2px);font:12px var(--font);letter-spacing:.2em;color:var(--ink);opacity:0;transition:opacity .3s;pointer-events:none}
+#cover.cooking .veil{opacity:1}
+#meta{text-align:center;max-width:520px}
+#title{font-size:20px;font-weight:600;letter-spacing:-.01em;margin:0}
+#tags{color:var(--dim);font:11px var(--font);margin:4px 0 0;letter-spacing:.06em}
+#lyric{color:var(--dim);font-size:13px;margin:8px 0 0;min-height:1.5em;font-style:italic;cursor:text}
+#lyric:hover{color:var(--ink)}
+#meta2{text-align:center;max-width:560px;width:100%}
+#meta2 #lyric{margin-top:0}
+#tagRow{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin:10px auto 0;max-width:560px}
+#tagList{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin:8px auto 0;max-width:560px}
+#tagList:empty{display:none}
+#tagList button{font:12px var(--font);letter-spacing:.02em;padding:5px 10px;border-radius:999px;border:1px solid var(--line);color:var(--dim);background:transparent;transition:all .15s}
+#tagList button.like{color:#111;background:var(--acc);border-color:var(--acc)}
+#tagList button.avoid{color:hsl(220 40% 70%);border-color:hsl(220 30% 40%);text-decoration:line-through;opacity:.8}
+#tagList button.add{border-style:dashed}
+#tagList input{font:12px var(--font);width:110px;padding:5px 10px;border-radius:999px;border:1px solid var(--acc);background:var(--card);outline:none}
+#meta2 #next{margin:8px 0 0}
+#tagRow button.meta{color:var(--dim);border-style:dotted;cursor:default}
+#tagRow button.fold{color:var(--acc);border-color:transparent;font-weight:600;letter-spacing:.12em}
+#stage{gap:14px}
+#tagRow button{font:12px var(--font);letter-spacing:.02em;padding:5px 10px;border-radius:999px;border:1px solid var(--line);color:var(--dim);background:transparent;transition:all .15s}
+#tagRow button.like{color:#111;background:var(--acc);border-color:var(--acc)}
+#tagRow button.avoid{color:hsl(220 40% 70%);border-color:hsl(220 30% 40%);text-decoration:line-through;opacity:.8}
+#tagRow button.add{border-style:dashed}
+#tagRow input{font:12px var(--font);width:110px;padding:5px 10px;border-radius:999px;border:1px solid var(--acc);background:var(--card);outline:none}
+
+#lyrics{white-space:pre-wrap;text-align:center;font-size:13px;line-height:1.65;margin:0;color:var(--ink);flex:1;overflow:auto;padding:4px 16px 18px;font-family:var(--sans);-webkit-mask-image:linear-gradient(#000 85%,transparent);mask-image:linear-gradient(#000 85%,transparent)}
+#lyrics.none{color:var(--dim);font-style:italic;display:grid;place-items:center}
+#lyrics .sec{display:block;color:var(--dim);font:600 10px var(--font);letter-spacing:.2em;margin:12px 0 2px}
+#lyrics .sec:first-child{margin-top:0}
+#cover{cursor:pointer}
+#bar{width:min(78vw,380px);height:2px;background:var(--line);border-radius:2px;overflow:hidden}
+#bar i{display:block;height:100%;width:0;background:var(--acc)}
+#controls{display:flex;align-items:center;gap:18px}
+#controls button{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;color:var(--ink);opacity:.85}
+#controls #backTrack svg,#controls #skip svg{width:24px;height:24px}
+#controls #prev{opacity:.6}
+#pills{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
+#pills button{display:inline-flex;align-items:center;gap:8px;padding:9px 18px;border-radius:999px;border:1px solid var(--line);font:600 12px var(--font);letter-spacing:.14em;color:var(--ink);background:var(--card);transition:background .2s,color .2s,border-color .2s}
+#pills button.on{background:var(--acc);color:#111;border-color:var(--acc)}
+#pills button:disabled{opacity:.4;cursor:default}
+#controls button:hover{opacity:1}
+#controls #play{width:62px;height:62px;background:var(--ink);color:#0b0b0e}
+#trail{display:flex;gap:10px;overflow-x:auto;max-width:560px;width:100%;padding:10px 4px 6px;scrollbar-width:none;-webkit-overflow-scrolling:touch}
+#trail::-webkit-scrollbar{display:none}
+#trail:empty{display:none}
+#trail canvas{width:40px;height:40px;border-radius:9px;flex:none;opacity:.45;cursor:pointer;transition:opacity .2s,transform .2s}
+#trail canvas:hover{opacity:.8}
+#trail canvas.on{opacity:1;transform:scale(1.15);box-shadow:0 0 0 2px var(--ink)}
+#trail canvas.kept{box-shadow:0 0 0 2px var(--acc)}
+#trail canvas.on.kept{box-shadow:0 0 0 2px var(--acc),0 0 0 4px var(--ink)}
+#controls svg{width:22px;height:22px;fill:currentColor}
+#controls #loop,#controls #shuffle,#controls #remix{opacity:.6}
+#controls #remix:hover{opacity:1}
+#controls #shuffle.on{opacity:1;color:var(--acc);background:rgba(233,216,166,.12)}
+#controls #loop svg{width:18px;height:18px}
+#controls #loop.on{opacity:1;color:var(--acc);background:rgba(233,216,166,.12)}
+#next{font:11px var(--font);letter-spacing:.14em;color:var(--dim);min-height:1.4em;text-align:center}
+
+
+#react{display:flex;flex-direction:column;gap:10px;align-items:center}
+#emojis{display:flex;gap:6px;justify-content:center;flex-wrap:wrap}
+#emojis button{font-size:22px;width:44px;height:44px;border-radius:12px;border:1px solid transparent;transition:transform .15s,border-color .15s,background .15s}
+#emojis button:hover{background:var(--card);border-color:var(--line)}
+#emojis button.hit{transform:scale(1.25);border-color:var(--acc)}
+#emojis #more{font-size:20px;color:var(--dim);background:var(--card);border:1px solid var(--line)}
+#picker{position:fixed;left:50%;bottom:0;transform:translateX(-50%);width:min(560px,100%);max-height:55dvh;background:var(--card);border:1px solid var(--line);border-bottom:0;border-radius:18px 18px 0 0;padding:12px 12px calc(12px + env(safe-area-inset-bottom));overflow:auto;z-index:5;box-shadow:0 -20px 60px rgba(0,0,0,.6)}
+#picker h4{font:600 10px var(--font);letter-spacing:.2em;color:var(--dim);margin:10px 4px 6px}
+#picker .g{display:grid;grid-template-columns:repeat(auto-fill,minmax(42px,1fr));gap:2px}
+#picker .g button{font-size:24px;height:42px;border-radius:10px}
+#picker .g button:hover{background:#1a1a20}
+#picker .top{display:flex;gap:8px;align-items:center;margin-bottom:4px}
+#picker .top input{flex:1;background:#0a0a0d;border:1px solid var(--line);border-radius:10px;padding:8px 12px;font-size:16px;outline:none}
+#picker .top button{padding:8px 12px;border-radius:10px;border:1px solid var(--line);color:var(--dim);font:600 11px var(--font);letter-spacing:.14em}
+#sayRow{display:flex;gap:8px;width:min(520px,100%)}
+#say{flex:1;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:10px 14px;outline:none;font-size:14px}
+#say:focus{border-color:var(--acc)}
+#sayRow button{padding:0 14px;border:1px solid var(--line);border-radius:12px;color:var(--dim)}
+#toast{position:fixed;left:50%;bottom:110px;transform:translateX(-50%);background:var(--card);border:1px solid var(--line);border-radius:10px;padding:8px 14px;font-size:13px;opacity:0;transition:opacity .25s;pointer-events:none;max-width:calc(100% - 32px);text-align:center}
+#toast.on{opacity:1}
+
+/* ---------- taste ---------- */
+#taste{position:fixed;inset:0;background:rgba(11,11,14,.97);padding:18px 16px calc(18px + env(safe-area-inset-bottom));overflow:auto}
+#taste header{display:flex;justify-content:space-between;align-items:center;font:600 12px var(--font);letter-spacing:.2em;color:var(--dim);margin-bottom:12px}
+#tasteTabs{display:flex;gap:8px;overflow-x:auto;padding:2px 0 12px;scrollbar-width:none}
+#tasteTabs button{display:flex;align-items:center;gap:8px;padding:6px 12px 6px 6px;border-radius:999px;border:1px solid var(--line);font-size:12px;white-space:nowrap;color:var(--dim)}
+#tasteTabs button.on{color:var(--ink);border-color:var(--acc)}
+#tasteTabs canvas{width:22px;height:22px;border-radius:50%}
+#tasteMap{width:100%;max-width:640px;aspect-ratio:1;display:block;margin:0 auto;border-radius:18px;background:var(--card)}
+#brainMap{width:100%;max-width:640px;aspect-ratio:2.2;display:block;margin:0 auto 14px;border-radius:18px;background:var(--card)}
+#tastePalette{max-width:640px;margin:18px auto 0}
+#tastePalette h3{font:600 11px var(--font);letter-spacing:.2em;color:var(--dim);margin:0 0 10px;text-align:center}
+#tastePalette .row{display:flex;gap:14px;overflow-x:auto;padding:4px;scrollbar-width:none;justify-content:safe center}
+#tastePalette .s{flex:0 0 96px;cursor:pointer;text-align:center}
+#tastePalette .s canvas{width:80px;height:80px;border-radius:14px;display:block;margin:0 auto 6px}
+#tastePalette .s b{display:block;font-size:11px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
+#tasteNote{color:var(--dim);font-size:12px;text-align:center;margin:12px auto 0;max-width:520px}
+#tasteLegend{display:flex;justify-content:center;gap:16px;font:11px var(--font);letter-spacing:.08em;color:var(--dim);margin-top:10px;flex-wrap:wrap}
+
+/* ---------- tapes ---------- */
+#lib .t .addTape{position:absolute;right:6px;bottom:6px;width:26px;height:26px;border-radius:50%;background:rgba(11,11,14,.75);border:1px solid var(--line);color:var(--ink);font-size:16px;line-height:1;display:grid;place-items:center}
+#lib .t .addTape:hover{background:var(--acc);color:#111}
+#tapeRow{display:flex;gap:14px;overflow-x:auto;padding:4px 4px 10px;scrollbar-width:none;grid-column:1/-1}
+#tapeRow .s{flex:0 0 110px;cursor:pointer;text-align:center}
+#tapeRow .s .tc{width:88px;height:88px;border-radius:14px;margin:0 auto 6px;position:relative;overflow:hidden;background:var(--card);display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:2px}
+#tapeRow .s .tc canvas{width:100%;height:100%;display:block}
+#tapeRow .s .tc.one{grid-template-columns:1fr;grid-template-rows:1fr}
+#tapeRow .s.new .tc{display:grid;place-items:center;border:1px dashed var(--line);font-size:26px;color:var(--dim)}
+#tapeRow .s b{display:block;font-size:12px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
+#tapeRow .s small{color:var(--dim);font-size:11px}
+#tapePick{position:fixed;left:50%;bottom:0;transform:translateX(-50%);width:min(480px,100%);background:var(--card);border:1px solid var(--line);border-bottom:0;border-radius:18px 18px 0 0;padding:14px 14px calc(14px + env(safe-area-inset-bottom));z-index:6;box-shadow:0 -20px 60px rgba(0,0,0,.6)}
+#tapePick h4{font:600 10px var(--font);letter-spacing:.2em;color:var(--dim);margin:0 0 10px}
+#tapePick button{display:block;width:100%;text-align:left;padding:10px 12px;border-radius:10px;border:1px solid var(--line);margin-bottom:6px}
+#tapePick button:hover{background:#1a1a20}
+#tapePick input{width:100%;background:#0a0a0d;border:1px solid var(--line);border-radius:10px;padding:10px 12px;outline:none;margin-bottom:6px}
+#tape{position:fixed;inset:0;background:rgba(11,11,14,.97);padding:18px 16px calc(18px + env(safe-area-inset-bottom));overflow:auto;z-index:4}
+#tape header{display:flex;justify-content:space-between;align-items:center;font:600 12px var(--font);letter-spacing:.2em;color:var(--dim);margin-bottom:12px;gap:10px}
+#tape header input{flex:1;background:transparent;border:0;border-bottom:1px solid var(--line);font:600 18px var(--sans);letter-spacing:0;color:var(--ink);outline:none;padding:4px 0;min-width:0}
+#tape .acts{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}
+#tape .acts button{padding:9px 16px;border-radius:999px;border:1px solid var(--line);font:600 12px var(--font);letter-spacing:.14em;background:var(--card)}
+#tape .acts button.go{background:var(--acc);color:#111;border-color:var(--acc)}
+#tape .list{display:flex;flex-direction:column;gap:8px;max-width:640px;margin:0 auto}
+#tape .row{display:flex;align-items:center;gap:12px;padding:8px;border-radius:14px;background:var(--card);border:1px solid var(--line)}
+#tape .row.on{border-color:var(--acc)}
+#tape .row canvas{width:52px;height:52px;border-radius:10px;flex:0 0 52px;cursor:pointer}
+#tape .row .m{flex:1;min-width:0;cursor:pointer}
+#tape .row b{display:block;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
+#tape .row small{color:var(--dim);font-size:11px;font-family:var(--font)}
+#tape .row .ctl{display:flex;gap:2px}
+#tape .row .ctl button{width:32px;height:32px;border-radius:8px;color:var(--dim);font-size:14px}
+#tape .row .ctl button:hover{background:#1a1a20;color:var(--ink)}
+#tape .empty{color:var(--dim);text-align:center;padding:40px 0}
+
+/* ---------- library ---------- */
+#lib{position:fixed;inset:0;background:rgba(11,11,14,.96);padding:18px 16px;overflow:auto}
+#lib header{display:flex;justify-content:space-between;align-items:center;font:600 12px var(--font);letter-spacing:.2em;color:var(--dim);margin-bottom:16px}
+#lib .grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:14px}
+#lib h3{font:600 11px var(--font);letter-spacing:.2em;color:var(--dim);margin:22px 0 10px;display:flex;align-items:center;gap:10px}
+#lib h3 canvas{width:22px;height:22px;border-radius:50%}
+#lib h3 small{font-weight:400;letter-spacing:.08em;opacity:.7}
+#lib .t.on canvas{outline:2px solid var(--acc);outline-offset:2px}
+#lib .t .art{position:relative;aspect-ratio:1;border-radius:12px;overflow:hidden;background:var(--card)}
+#lib .t .art canvas{width:100%;height:100%;display:block}
+#lib .t .kept{position:absolute;top:6px;right:6px;font:600 9px var(--font);letter-spacing:.18em;color:#111;background:var(--acc);border-radius:999px;padding:3px 7px}
+#lib .t .re{position:absolute;left:6px;bottom:6px;font-size:13px;letter-spacing:1px;background:rgba(11,11,14,.65);border-radius:8px;padding:2px 6px;max-width:calc(100% - 12px);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
+#lib .t small{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
+#lib .t{cursor:pointer}
+#lib .t canvas{width:100%;aspect-ratio:1;border-radius:12px;display:block;background:var(--card)}
+#lib .t b{display:block;font-size:12px;margin-top:6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
+#lib .t small{color:var(--dim);font-size:11px}
+#lib .empty{color:var(--dim);text-align:center;padding:40px 0}
+#lib .cost{color:var(--dim);font:11px var(--font);margin-top:24px;text-align:center}
+</style>
+</head>
+<body>
+
+<!-- ============ screen 1: the seed ============ -->
+<section id="seed">
+  <div class="wordmark">GANDORA</div>
+  <div id="nowRow" class="hidden"><div id="now" title="back to the station"><canvas width="56" height="56"></canvas><span id="nowTitle"></span><b>▶ PLAYING</b></div></div>
+  <form id="seedForm" autocomplete="off">
+    <div id="seedCover"><canvas width="240" height="240"></canvas></div>
+    <input id="seedIn" placeholder="type a seed" maxlength="200" autofocus>
+    <div class="hint" id="seedHint">a mood, a line, a place, a word</div>
+  </form>
+  <div id="stations" class="hidden"><h3>YOUR STATIONS</h3><div class="row" id="stationRow"></div></div>
+  <div id="keyRow"><button class="nav" id="libBtn2" type="button">LIBRARY</button><button class="nav" id="tasteBtn2" type="button">TASTE</button><button id="keyBtn" type="button" class="hidden">shared budget · add a venice key</button></div>
+  <div id="keyBox" class="hidden">
+    <p>Optional. Without a key, gandora runs on a shared budget through inference.yolopreneur.lol (a few tracks a day per person). With your own Venice key it goes straight to api.venice.ai from this browser and the key goes nowhere else.</p>
+    <input id="keyIn" placeholder="sk-…" spellcheck="false">
+    <label>DJ model <input id="djIn" placeholder="claude-haiku-5-5" spellcheck="false"></label>
+    <div class="row"><button id="keyCancel" type="button">cancel</button><button id="keySave" class="go" type="button">save</button></div>
+  </div>
+</section>
+
+<!-- ============ screen 2: the station ============ -->
+<section id="player" class="hidden">
+  <div id="top">
+    <button id="back" title="new seed">◂ SEED</button>
+    <div><button id="tasteBtn">TASTE</button> &nbsp; <button id="libBtn">LIBRARY</button></div>
+  </div>
+  <div id="stage">
+    <div class="station" id="stationName" title="rename, look, reset or delete"></div>
+    <div id="cover"><div class="card">
+      <div class="face"><canvas width="760" height="760"></canvas><div class="veil">COOKING</div></div>
+      <div class="face back"><div class="backTitle">LYRICS</div><pre id="lyrics"></pre></div>
+    </div></div>
+    <div id="meta"><h1 id="title">…</h1></div>
+    <div id="bar"><i></i></div>
+    <div id="meta2"><p id="lyric" title="reply to the DJ"></p><div id="next"></div><p id="tags" class="hidden"></p><div id="tagRow"></div><div id="tagList"></div></div>
+    <div id="controls">
+      <button id="backTrack" title="previous track">
+        <svg viewBox="0 0 24 24"><path d="M18 6l-8.5 6 8.5 6V6zM6 6v12h2V6H6z"/></svg>
+      </button>
+      <button id="shuffle" title="shuffle: mix the station's own library in">
+        <svg viewBox="0 0 24 24"><path d="M17 4h4v4l-1.5-1.5L16 10l-1.4-1.4 3.5-3.5L17 4zM3 6h4.5l3 3-1.4 1.4L7 8H3V6zm14.6 10.6 1.5-1.5v4h-4l1.5-1.5-3.1-3.1 1.4-1.4 2.7 2.7zM3 18v-2h4l9.5-9.5L18 8l-10 10H3z"/></svg>
+      </button>
+      <button id="prev" title="replay from the start">
+        <svg viewBox="0 0 24 24"><path d="M12 5V2L7 7l5 5V8c3.3 0 6 2.7 6 6s-2.7 6-6 6-6-2.7-6-6H4c0 4.4 3.6 8 8 8s8-3.6 8-8-3.6-8-8-8z"/></svg>
+      </button>
+      <button id="play" title="play / pause"><svg id="playIco" viewBox="0 0 24 24"><path d="M8 5v14l11-7z"/></svg></button>
+      <button id="loop" title="repeat this track">
+        <svg viewBox="0 0 24 24"><path d="M7 7h10v3l4-4-4-4v3H5v6h2V7zm10 10H7v-3l-4 4 4 4v-3h12v-6h-2v4z"/></svg>
+      </button>
+      <button id="remix" title="remix this track: same bones, your changes">
+        <svg viewBox="0 0 24 24"><path d="M12 3a9 9 0 1 0 9 9h-2a7 7 0 1 1-7-7v3l4-4-4-4v3zm0 5a4 4 0 1 0 0 8 4 4 0 0 0 0-8zm0 2a2 2 0 1 1 0 4 2 2 0 0 1 0-4z"/></svg>
+      </button>
+      <button id="skip" title="next">
+        <svg viewBox="0 0 24 24"><path d="M6 18l8.5-6L6 6v12zm10-12v12h2V6h-2z"/></svg>
+      </button>
+    </div>
+    <div id="trail" title="what this station has played · tap to jump"></div>
+    <div id="pills"><button id="lyricsBtn">⇄ LYRICS</button><button id="keep" disabled>➕ KEEP</button><button id="share" disabled>↗ SHARE</button></div>
+  </div>
+  <div id="react">
+    <div id="emojis">
+      <button data-e="🔥" title="more of this">🔥</button>
+      <button data-e="❤️" title="love it">❤️</button>
+      <button data-e="😴" title="too sleepy">😴</button>
+      <button data-e="🌧️" title="sadder">🌧️</button>
+      <button data-e="⚡" title="faster, louder">⚡</button>
+      <button data-e="🎸" title="more guitar">🎸</button>
+      <button data-e="🎹" title="more keys">🎹</button>
+      <button data-e="🚫" title="not this">🚫</button>
+      <button id="more" title="more emoji">＋</button>
+    </div>
+    <div id="picker" class="hidden"></div>
+    <form id="sayRow"><input id="say" placeholder="or say it: less snare, sadder but faster…" maxlength="240"><button>send</button></form>
+  </div>
+  <div id="toast"></div>
+</section>
+
+<section id="taste" class="hidden">
+  <header><span>TASTE</span><button id="tasteClose">CLOSE</button></header>
+  <div id="tasteTabs"></div>
+  <canvas id="brainMap" width="880" height="400"></canvas>
+  <canvas id="tasteMap" width="900" height="900"></canvas>
+  <div id="tasteLegend"><span>← slow · tempo · fast →</span><span>↑ energy</span><span>colour = key</span><span>ring = 🔥❤️ warm · 🚫⏭ cold</span></div>
+  <div id="tasteNote"></div>
+  <div id="tastePalette"></div>
+</section>
+
+<section id="tape" class="hidden">
+  <header><span>TAPE</span><input id="tapeName" maxlength="60"><button id="tapeClose">CLOSE</button></header>
+  <div class="acts"><button class="go" id="tapePlay">▶ PLAY ALL</button><button id="tapeLoop">🔁 REPEAT ALL</button><button id="tapeShare">↗ SHARE</button><button id="tapeDelete">DELETE TAPE</button></div>
+  <div class="list" id="tapeList"></div>
+  <div class="empty hidden" id="tapeEmpty">Empty tape. Add tracks from the library with the ＋ on a tile.</div>
+</section>
+<div id="tapePick" class="hidden"></div>
+<div id="stationSheet" class="hidden"></div>
+<div id="scrim" class="hidden"></div>
+
+<section id="lib" class="hidden">
+  <header><span>LIBRARY</span><button id="libClose">CLOSE</button></header>
+  <div class="grid" id="libGrid"></div>
+  <div class="empty hidden" id="libEmpty">Nothing played yet. Every track lands here; KEEP one to pin it for good.</div>
+  <div class="cost" id="libCost"></div>
+</section>
+
+<script>
+/* ============================================================
+   gandora — a generative station.
+   seed → DJ (Venice chat) → ACE-Step (Venice /audio/queue) → player.
+   Every cover is drawn from the song's own settings: hue from key,
+   rings from BPM, density from energy, symmetry from the seed.
+   ============================================================ */
+const DIRECT = "https://api.venice.ai/api/v1";              // with a personal key
+const SHARED = "https://inference.yolopreneur.lol/v1";      // without one: the factory's worker, quota'd per person
+const $ = (s) => document.querySelector(s);
+const LS = { key: "gandora.key", dj: "gandora.dj", cost: "gandora.cost" };
+const state = {
+  key: localStorage.getItem(LS.key) || "",
+  dj: localStorage.getItem(LS.dj) || "claude-haiku-5-5",
+  seed: "", station: "", stationId: "",
+  taste: { like: [], avoid: [], notes: [] },     // what the listener has told the station
+  history: [],                                    // tracks played this session (specs)
+  current: null, nextJob: null, playing: false,
+  recent: [], pos: -1,                             // ids of tracks played this session, and where the player stands in them
+  audio: new Audio(), cost: parseFloat(localStorage.getItem(LS.cost) || "0"),
+};
+state.audio.preload = "auto";
+
+/* ---------- small utils ---------- */
+const toast = (m, ms = 2400) => { const t = $("#toast"); t.textContent = m; t.classList.add("on"); clearTimeout(toast.h); toast.h = setTimeout(() => t.classList.remove("on"), ms); };
+const sleep = (ms) => new Promise((r) => setTimeout(r, ms));
+function hash32(str) { let h = 2166136261 >>> 0; for (const c of String(str)) { h ^= c.codePointAt(0); h = Math.imul(h, 16777619) >>> 0; } return h; }
+function prng(seed) { let a = seed >>> 0; return () => { a = (a + 0x6D2B79F5) >>> 0; let t = a; t = Math.imul(t ^ (t >>> 15), t | 1); t ^= t + Math.imul(t ^ (t >>> 7), t | 61); return ((t ^ (t >>> 14)) >>> 0) / 4294967296; }; }
+const KEYS = ["C","G","D","A","E","B","F#","C#","G#","D#","A#","F"];    // circle of fifths → hue wheel
+function keyHue(k) {
+  const m = /^([A-G])(#|b)?/.exec(String(k || "C").trim()); if (!m) return 40;
+  let name = m[1] + (m[2] === "#" ? "#" : "");
+  if (m[2] === "b") { const flat = { Db:"C#", Eb:"D#", Gb:"F#", Ab:"G#", Bb:"A#", Cb:"B", Fb:"E" }; name = flat[m[1] + "b"] || m[1]; }
+  const i = KEYS.indexOf(name); return (i < 0 ? 0 : i) * 30;
+}
+
+/* ---------- the cover: a function of the song ---------- */
+// pulse: live signal from the analyser { bass, mid, high, t } in 0..1 (and seconds); without it the cover is still.
+// The ground and grain depend only on the song, so they are drawn once per (song, size) and cached; the rings and
+// the seed mark are redrawn on top every frame when the music is playing.
+const groundCache = new Map();
+/* palette dial: mono (one hue, its shades), duo (the key's hue and a complement), tri (a triad) */
+const PALETTES = ["mono", "duo", "tri"];
+function palette(spec) {
+  const energy = Math.min(1, Math.max(0, +spec.energy || 0.5)), minor = /m(in|inor)?\b/i.test(spec.key || "") && !/maj/i.test(spec.key || "");
+  const hue = keyHue(spec.key), mode = spec.palette || "duo";
+  const hue2 = mode === "mono" ? hue : mode === "tri" ? (hue + 120) % 360 : (hue + (minor ? 200 : 150)) % 360;
+  const hue3 = mode === "tri" ? (hue + 240) % 360 : hue2;
+  return { energy, minor, hue, hue2, hue3, mode, sat: 55 + energy * 35, light: minor ? 36 : 52, bpm: +spec.bpm || 100 };
+}
+function drawGround(W, H, spec, lit) {
+  const key = `${spec.seed}|${spec.title}|${spec.tags}|${spec.palette || ""}|${W}|${lit}`;
+  if (groundCache.has(key)) return groundCache.get(key);
+  const off = document.createElement("canvas"); off.width = W; off.height = H;
+  const ctx = off.getContext("2d"), cx = W / 2, cy = H / 2, p = palette(spec);
+  const rnd = prng(hash32((spec.seed || "") + "|" + (spec.title || "") + "|" + (spec.tags || "")) ^ 0x9e37);
+  const g = ctx.createLinearGradient(0, 0, 0, H);
+  g.addColorStop(0, `hsl(${p.hue} ${p.sat * .5}% ${p.light * .3}%)`); g.addColorStop(1, `hsl(${p.hue2} ${p.sat * .4}% ${p.light * .18}%)`);
+  ctx.fillStyle = g; ctx.fillRect(0, 0, W, H);
+  ctx.globalCompositeOperation = "lighter";
+  const spread = W * .46, dots = Math.floor(400 + p.energy * 2600);
+  for (let i = 0; i < dots; i++) {
+    const a = rnd() * Math.PI * 2, d = Math.sqrt(rnd()) * spread * 1.05;
+    ctx.fillStyle = `hsl(${i % 3 ? p.hue2 : p.hue3} ${p.sat}% ${p.light + (p.mode === "mono" ? 38 : 30)}% / ${rnd() * 0.5 * lit})`;
+    ctx.fillRect(cx + Math.cos(a) * d, cy + Math.sin(a) * d, (W / 380) * (0.8 + rnd() * 1.6), (W / 380) * (0.8 + rnd() * 1.6));
+  }
+  if (groundCache.size > 24) groundCache.delete(groundCache.keys().next().value);
+  groundCache.set(key, off);
+  return off;
+}
+/* looks: every station has one; the seed mark in the centre is the same whichever look draws around it */
+const LOOKS = ["rings", "chord", "attractor"];
+function drawCover(canvas, spec, opts = {}) {
+  const look = spec.look || opts.look || "rings";
+  if (look === "chord") return drawChord(canvas, spec, opts);
+  if (look === "attractor") return drawAttractor(canvas, spec, opts);
+  return drawRings(canvas, spec, opts);
+}
+function drawMark(ctx, W, spec, p, lit, bass, tm) {
+  const core = prng(hash32(spec.seed || ""));
+  const petals = 3 + Math.floor(core() * 5);
+  ctx.save(); ctx.translate(W / 2, W / 2); ctx.rotate(core() * Math.PI + tm * 0.05); ctx.scale(1 + 0.3 * bass, 1 + 0.3 * bass);
+  ctx.fillStyle = `hsl(${p.hue} ${p.sat}% ${Math.min(92, p.light + 45)}% / ${0.85 * lit})`;
+  ctx.beginPath();
+  for (let a = 0; a <= Math.PI * 2 + 0.01; a += Math.PI / 120) {
+    const rr = (W * .06) * (1 + 0.45 * Math.cos(a * petals));
+    const x = Math.cos(a) * rr, y = Math.sin(a) * rr;
+    a === 0 ? ctx.moveTo(x, y) : ctx.lineTo(x, y);
+  }
+  ctx.closePath(); ctx.fill(); ctx.restore();
+}
+/* chord: a harmonograph whose frequency ratio is the key's interval (major third 5:4, minor 6:5), damped by tempo,
+   phased by the seed; the bass swells the whole figure */
+function drawChord(canvas, spec, { lit = 1, pulse = null } = {}) {
+  const ctx = canvas.getContext("2d"), W = canvas.width, H = canvas.height, cx = W / 2, cy = H / 2;
+  const p = palette(spec), rnd = prng(hash32((spec.seed || "") + "|" + (spec.title || "") + "|" + (spec.tags || "")));
+  const bass = pulse ? pulse.bass : 0, high = pulse ? pulse.high : 0, tm = pulse ? pulse.t : 0;
+  ctx.globalCompositeOperation = "source-over";
+  const g = ctx.createRadialGradient(cx, cy, 0, cx, cy, W * .7);
+  g.addColorStop(0, `hsl(${p.hue} ${p.sat * .5}% ${p.light * .32}%)`); g.addColorStop(1, `hsl(${p.hue2} ${p.sat * .4}% ${p.light * .14}%)`);
+  ctx.fillStyle = g; ctx.fillRect(0, 0, W, H);
+  const [fa, fb] = p.minor ? [6, 5] : [5, 4];
+  const fc = 1 + Math.round(p.bpm / 40);                               // a third pendulum: tempo adds a faster harmonic
+  const damp = 0.00045 + (p.bpm - 60) / 120 * 0.0006, ph1 = rnd() * Math.PI * 2, ph2 = rnd() * Math.PI * 2, ph3 = rnd() * Math.PI * 2;
+  const amp = W * 0.36 * (1 + 0.1 * bass), mix = 0.2 + 0.5 * p.energy, detune = 0.004 + 0.01 * rnd();
+  ctx.globalCompositeOperation = "lighter";
+  // three traces: a soft wide one, then two fine ones a hair apart in frequency, so the figure fills with moiré
+  for (let pass = 0; pass < 3; pass++) {
+    const dt = pass === 2 ? detune : 0;
+    ctx.beginPath();
+    for (let t = 0; t < 2600; t += 0.6) {
+      const e = Math.exp(-damp * t);
+      const x = cx + amp * e * (Math.sin((fa + dt) * t * 0.02 + ph1 + tm * 0.02) + mix * 0.3 * Math.sin(fc * t * 0.02 + ph3));
+      const y = cy + amp * e * (Math.sin((fb - dt) * t * 0.02 + ph2 - tm * 0.02) + mix * 0.3 * Math.cos(fc * t * 0.02 + ph3));
+      t === 0 ? ctx.moveTo(x, y) : ctx.lineTo(x, y);
+    }
+    ctx.lineWidth = pass ? (0.55 + 0.6 * high) * (W / 380) : (3 + 2 * bass) * (W / 380);
+    ctx.strokeStyle = pass ? `hsl(${pass === 2 ? p.hue2 : p.hue} ${p.sat}% ${p.light + 36}% / ${0.42 * lit})` : `hsl(${p.hue2} ${p.sat}% ${p.light + 12}% / ${0.12 * lit})`;
+    ctx.stroke();
+  }
+  ctx.globalCompositeOperation = "source-over";
+  drawMark(ctx, W, spec, p, lit, bass, tm);
+}
+/* attractor: a Clifford attractor whose four parameters come from key, tempo, energy and the seed; the point cloud is
+   drawn once and cached, the seed mark beats on top */
+const attractorCache = new Map();
+function drawAttractor(canvas, spec, { lit = 1, pulse = null } = {}) {
+  const ctx = canvas.getContext("2d"), W = canvas.width, H = canvas.height;
+  const p = palette(spec);
+  const bass = pulse ? pulse.bass : 0, tm = pulse ? pulse.t : 0;
+  const key = `${spec.seed}|${spec.title}|${spec.tags}|${spec.palette || ""}|${W}|${lit}`;
+  let off = attractorCache.get(key);
+  if (!off) {
+    off = document.createElement("canvas"); off.width = W; off.height = H;
+    const o = off.getContext("2d"), rnd = prng(hash32(key));
+    const g = o.createLinearGradient(0, 0, W, H);
+    g.addColorStop(0, `hsl(${p.hue} ${p.sat * .45}% ${p.light * .3}%)`); g.addColorStop(1, `hsl(${p.hue2} ${p.sat * .4}% ${p.light * .15}%)`);
+    o.fillStyle = g; o.fillRect(0, 0, W, H);
+    // parameters in the ranges that keep Clifford figures open and filamentary
+    const a = -1.4 - 0.6 * ((p.hue % 120) / 120), b = 1.2 + 0.8 * ((p.bpm - 60) / 120), c = 0.6 + 1.2 * p.energy, d = (p.minor ? -1 : 1) * (0.6 + 1.0 * rnd());
+    let x = 0.1, y = 0.1; const n = 36000, pts = [];
+    let minX = 9, maxX = -9, minY = 9, maxY = -9;
+    for (let i = 0; i < n; i++) { const nx = Math.sin(a * y) + c * Math.cos(a * x), ny = Math.sin(b * x) + d * Math.cos(b * y); x = nx; y = ny; if (i > 200) { pts.push(x, y); if (x < minX) minX = x; if (x > maxX) maxX = x; if (y < minY) minY = y; if (y > maxY) maxY = y; } }
+    const sx = (W * 0.78) / Math.max(1e-6, maxX - minX), sy = (H * 0.78) / Math.max(1e-6, maxY - minY), s = Math.min(sx, sy);
+    const ox = W / 2 - (minX + maxX) / 2 * s, oy = H / 2 - (minY + maxY) / 2 * s;
+    o.globalCompositeOperation = "lighter";
+    o.fillStyle = `hsl(${p.hue} ${p.sat}% ${p.light + 28}% / ${0.16 * lit})`;
+    const dot = Math.max(1, W / 380);
+    for (let i = 0; i < pts.length; i += 2) o.fillRect(ox + pts[i] * s, oy + pts[i + 1] * s, dot, dot);
+    o.fillStyle = `hsl(${p.hue2} ${p.sat}% ${p.light + 40}% / ${0.08 * lit})`;
+    for (let i = 0; i < pts.length; i += 6) o.fillRect(ox + pts[i] * s, oy + pts[i + 1] * s, dot * 2, dot * 2);
+    if (attractorCache.size > 16) attractorCache.delete(attractorCache.keys().next().value);
+    attractorCache.set(key, off);
+  }
+  ctx.globalCompositeOperation = "source-over";
+  ctx.drawImage(off, 0, 0);
+  if (bass > 0.02) { ctx.globalAlpha = 0.5 * bass; ctx.drawImage(off, W / 2 - W * (0.5 + 0.03 * bass), H / 2 - H * (0.5 + 0.03 * bass), W * (1 + 0.06 * bass), H * (1 + 0.06 * bass)); ctx.globalAlpha = 1; }
+  drawMark(ctx, W, spec, p, lit, bass, tm);
+}
+function drawRings(canvas, spec, { lit = 1, pulse = null } = {}) {
+  const ctx = canvas.getContext("2d"), W = canvas.width, H = canvas.height, cx = W / 2, cy = H / 2;
+  const p = palette(spec), { energy, minor, hue, sat, light, bpm } = p;
+  const rnd = prng(hash32((spec.seed || "") + "|" + (spec.title || "") + "|" + (spec.tags || "")));
+  const bass = pulse ? pulse.bass : 0, high = pulse ? pulse.high : 0, tm = pulse ? pulse.t : 0;
+  ctx.globalCompositeOperation = "source-over";
+  ctx.drawImage(drawGround(W, H, spec, lit), 0, 0);
+  // rings: one per 10 bpm; the bass breathes them outward, the highs sharpen the line
+  const rings = Math.max(4, Math.round(bpm / 10));
+  const spread = W * .46, sym = 3 + Math.floor(rnd() * 6);  // symmetry order from the seed
+  ctx.globalCompositeOperation = "lighter";
+  for (let r = 0; r < rings; r++) {
+    const t = (r + 1) / rings, rad = spread * Math.pow(t, .8) * (1 + 0.07 * bass * (1 - t));
+    ctx.beginPath();
+    const wob = 0.02 + energy * 0.08 + 0.03 * high, ph = rnd() * Math.PI * 2 + tm * (0.15 + 0.3 * t) * (r % 2 ? 1 : -1);
+    for (let a = 0; a <= Math.PI * 2 + 0.01; a += Math.PI / 90) {
+      const rr = rad * (1 + wob * Math.sin(a * sym + ph) + wob * 0.5 * Math.sin(a * sym * 2 + ph * 3));
+      const x = cx + Math.cos(a) * rr, y = cy + Math.sin(a) * rr;
+      a === 0 ? ctx.moveTo(x, y) : ctx.lineTo(x, y);
+    }
+    ctx.closePath();
+    ctx.lineWidth = (0.6 + energy * 2.2 + high * 1.5) * (W / 380) * (1 - t * 0.5);
+    ctx.strokeStyle = `hsl(${(hue + t * (minor ? -40 : 40)) % 360} ${sat}% ${light + t * 25}% / ${(0.12 + 0.6 * (1 - t)) * lit * (1 + 0.5 * bass)})`;
+    ctx.stroke();
+  }
+  ctx.globalCompositeOperation = "source-over";
+  // a core: the station's seed mark, same shape for every track of one seed; it beats with the bass
+  const core = prng(hash32(spec.seed || ""));
+  const petals = 3 + Math.floor(core() * 5);
+  ctx.save(); ctx.translate(cx, cy); ctx.rotate(core() * Math.PI + tm * 0.05); ctx.scale(1 + 0.3 * bass, 1 + 0.3 * bass);
+  ctx.fillStyle = `hsl(${hue} ${sat}% ${Math.min(92, light + 45)}% / ${0.85 * lit})`;
+  ctx.beginPath();
+  for (let a = 0; a <= Math.PI * 2 + 0.01; a += Math.PI / 120) {
+    const rr = (W * .06) * (1 + 0.45 * Math.cos(a * petals));
+    const x = Math.cos(a) * rr, y = Math.sin(a) * rr;
+    a === 0 ? ctx.moveTo(x, y) : ctx.lineTo(x, y);
+  }
+  ctx.closePath(); ctx.fill(); ctx.restore();
+}
+
+/* ---------- the visualizer: an analyser on the player, driving the cover while music plays ---------- */
+const viz = { ctx: null, an: null, data: null, raf: 0, smooth: { bass: 0, mid: 0, high: 0 } };
+function vizStart() {
+  // the player is only wired through the analyser once the context is actually running: a suspended context
+  // (iOS before a tap) would mute the music, and the cover can wait for the next gesture
+  try {
+    viz.ctx ||= new (window.AudioContext || window.webkitAudioContext)();
+    if (viz.ctx.state !== "running") { viz.ctx.resume().then(() => { if (viz.ctx.state === "running" && state.playing) vizStart(); }).catch(() => {}); if (viz.ctx.state !== "running") return; }
+    if (!viz.an) {
+      const src = viz.ctx.createMediaElementSource(state.audio);
+      viz.an = viz.ctx.createAnalyser(); viz.an.fftSize = 512; viz.an.smoothingTimeConstant = 0.7;
+      src.connect(viz.an); viz.an.connect(viz.ctx.destination);
+      viz.data = new Uint8Array(viz.an.frequencyBinCount);
+    }
+  } catch { return; }
+  cancelAnimationFrame(viz.raf);
+  const canvas = $("#cover canvas"), t0 = performance.now();
+  const band = (a, b) => { let s = 0; for (let i = a; i < b; i++) s += viz.data[i]; return s / (b - a) / 255; };
+  const frame = () => {
+    if (!state.playing || !state.current || !state.current.blob) { viz.raf = 0; return; }
+    viz.an.getByteFrequencyData(viz.data);
+    const raw = { bass: band(1, 8), mid: band(8, 40), high: band(40, 120) };
+    for (const k in raw) viz.smooth[k] += (raw[k] - viz.smooth[k]) * (raw[k] > viz.smooth[k] ? 0.5 : 0.12);   // fast attack, slow decay
+    const s = viz.smooth;
+    drawCover(canvas, state.current.spec, { pulse: { bass: Math.min(1, s.bass * 1.4), mid: s.mid, high: Math.min(1, s.high * 2.5), t: (performance.now() - t0) / 1000 } });
+    viz.raf = requestAnimationFrame(frame);
+  };
+  viz.raf = requestAnimationFrame(frame);
+}
+function vizStop() { cancelAnimationFrame(viz.raf); viz.raf = 0; if (state.current && state.current.spec) drawCover($("#cover canvas"), state.current.spec); }
+
+/* ---------- Venice ---------- */
+async function venice(path, body, { raw = false } = {}) {
+  const headers = { "Content-Type": "application/json", Accept: raw ? "*/*" : "application/json" };
+  if (state.key) headers.Authorization = "Bearer " + state.key; else headers["x-app"] = "gandora";
+  const res = await fetch((state.key ? DIRECT : SHARED) + path, { method: body ? "POST" : "GET", headers, body: body ? JSON.stringify(body) : undefined });
+  if (!res.ok) {
+    let d = null; try { d = await res.json(); } catch {}
+    const said = d && (d.error && (d.error.message || d.error) || d.message) || "";
+    const why = { 401: "Venice didn't accept that key.", 402: "Venice says the key is out of credit.", 422: "Venice turned that down: " + said, 429: state.key ? "Venice is rate-limiting. Breathe." : (said || "Over today's shared budget."), 503: "That model is busy at Venice." }[res.status];
+    throw new Error(why || ("Venice answered " + res.status + (said ? ": " + said : "")));
+  }
+  return raw ? res : res.json();
+}
+
+const DJ_SCHEMA = {
+  type: "object", additionalProperties: false,
+  required: ["title", "tags", "lyrics", "bpm", "key", "energy", "station", "line"],
+  properties: {
+    title: { type: "string" }, tags: { type: "string" }, lyrics: { type: "string" },
+    bpm: { type: "integer" }, key: { type: "string" }, energy: { type: "number" },
+    station: { type: "string" }, line: { type: "string" },
+  },
+};
+function remixText() {
+  const s = state.remixOf; if (!s) return "";
+  const likes = [], avoids = [];
+  for (const m of String(s.reaction || "").matchAll(/(?:^|\s)([+\-])([^\s]+)/g)) (m[1] === "+" ? likes : avoids).push(m[2].replace(/_/g, " "));
+  const words = [...String(s.reaction || "").matchAll(/"([^"]*)"/g)].map((m) => m[1]);
+  return `\nTHIS IS A REMIX REQUEST. Rework this exact track rather than writing a new one:\n- title: ${s.title}\n- tags: ${s.tags}\n- bpm ${s.bpm}, key ${s.key}, energy ${s.energy}\n- lyrics:\n${s.lyrics || "(instrumental)"}\nKeep its bones (hook, mood, most of the lyrics) and apply the listener's changes: ${likes.length ? "more " + likes.join(", ") + "; " : ""}${avoids.length ? "less or no " + avoids.join(", ") + "; " : ""}${words.length ? "in their words: " + words.join(" / ") : ""}${!likes.length && !avoids.length && !words.length ? "a fresh take on the same song (new arrangement, same heart)" : ""}. Title it as a remix of the original (e.g. "${s.title} (remix)" or a named version).\n`;
+}
+function djPrompt() {
+  const prev = state.history.slice(-4).map((t, i) => `- ${t.title} [${t.tags}] ${t.bpm}bpm ${t.key} energy ${t.energy}${t.reaction ? " ← listener: " + t.reaction : ""}`).join("\n");
+  return `You are the DJ of a one-listener radio station. The listener typed a seed and the station grows from it.${remixText()}
+Seed: "${state.seed}"
+${state.station ? `Station name: ${state.station}\n` : ""}Listener asked for more of: ${state.taste.like.join("; ") || "(nothing yet)"}
+Listener asked to avoid: ${state.taste.avoid.join("; ") || "(nothing yet)"}
+Listener's words: ${state.taste.notes.join(" | ") || "(none yet)"}
+Recent tracks:
+${prev || "- (none yet: this is the first)"}
+
+Write the NEXT track. Keep continuity with the recent tracks unless the listener pushed away; vary something each time so the station moves.
+Return JSON:
+- title: a short evocative song title (never reuse one)
+- tags: the music prompt for a song model, 60-300 characters, comma-separated descriptors: genre, instruments, vocal style or "instrumental", mood, era, production notes. Concrete and musical, no sentences.
+- lyrics: full lyrics with [verse] / [chorus] / [bridge] section markers, 8-24 lines, or an empty string for instrumental.
+- bpm: integer 60-180 that fits the tags
+- key: like "A minor" or "F# major"
+- energy: 0 to 1
+- station: a two or three word station name grown from the seed (keep it stable once chosen)
+- line: one line, under 90 characters, the DJ says about this track to the listener (no quotes, no emoji)`;
+}
+async function askDJ() {
+  const body = { model: state.dj, messages: [{ role: "user", content: djPrompt() }], max_tokens: 1200, temperature: 0.9, stream: false,
+    venice_parameters: { disable_thinking: true, strip_thinking_response: true, include_venice_system_prompt: false },
+    response_format: { type: "json_schema", json_schema: { name: "track", strict: true, schema: DJ_SCHEMA } } };
+  let d;
+  try { d = await venice("/chat/completions", body); }
+  catch (e) { if (!/400/.test(e.message)) throw e; delete body.response_format; body.messages[0].content += "\nAnswer with the JSON object only."; d = await venice("/chat/completions", body); }
+  let text = String(d.choices?.[0]?.message?.content || "");
+  const m = text.match(/\{[\s\S]*\}/); if (!m) throw new Error("The DJ didn't answer in JSON.");
+  const spec = JSON.parse(m[0]);
+  spec.tags = String(spec.tags || "").slice(0, 500); if (spec.tags.length < 10) spec.tags += ", instrumental, warm, lo-fi";
+  spec.lyrics = String(spec.lyrics || "").slice(0, 4000);
+  spec.bpm = Math.min(180, Math.max(60, parseInt(spec.bpm) || 100));
+  spec.energy = Math.min(1, Math.max(0, +spec.energy || 0.5));
+  spec.seed = state.seed; spec.made = Date.now(); spec.look = state.look || "rings"; spec.palette = state.palette || "duo";
+  if (!state.station && spec.station) { state.station = spec.station; $("#stationName").textContent = state.station; }
+  return spec;
+}
+
+/* ACE-Step on Venice: queue, poll, download. 60 s costs about $0.03. Venice usually answers in 10-30 s but its queue
+   sometimes stalls a job for minutes, so after HEDGE_AT a second copy is queued and whichever lands first is taken. */
+const HEDGE_AT = 60000;
+async function renderTrack(spec, onStatus) {
+  if (!state.key) {                                     // shared worker: one call, audio back (Runware when the factory has a key, else Venice)
+    const started = Date.now(), tick = setInterval(() => onStatus && onStatus(Math.round((Date.now() - started) / 1000), 0, false), 1000);
+    try {
+      const body = { prompt: spec.tags, lyrics: spec.lyrics || "", duration: 60, bpm: spec.bpm, key: spec.key,
+        seed: spec.rseed ?? (hash32((spec.seed || "") + "|" + (spec.title || "") + "|" + (spec.tags || "")) >>> 1), quality: spec.quality || "turbo" };
+      let res;
+      try { res = await venice("/render", body, { raw: true }); }
+      catch (e) { if (!/answered 404/.test(e.message)) throw e; res = null; }   // older worker: fall through to queue+poll
+      if (res) {
+        const blob = await res.blob();
+        const cost = parseFloat(res.headers.get("x-cost") || ""), seed = parseInt(res.headers.get("x-seed") || "");
+        spec.renderer = res.headers.get("x-renderer") || "venice:ace-step-15";
+        if (!isNaN(seed)) spec.rseed = seed;
+        spec.cost = isNaN(cost) ? 0.03 : cost;
+        state.cost += spec.cost; localStorage.setItem(LS.cost, String(state.cost));
+        return blob;
+      }
+    } finally { clearInterval(tick); }
+  }
+  const body = { model: "ace-step-15", prompt: spec.tags, duration_seconds: 60, ...(spec.lyrics ? { lyrics_prompt: spec.lyrics } : {}) };
+  const jobs = [await venice("/audio/queue", body)];
+  const started = Date.now();
+  let hedged = false;
+  for (let i = 0; i < 90; i++) {
+    await sleep(i < 4 ? 2500 : 4000);
+    const elapsed = Date.now() - started;
+    if (!hedged && elapsed > HEDGE_AT) { hedged = true; try { jobs.push(await venice("/audio/queue", body)); } catch {} }
+    let expected = 0;
+    for (const q of jobs) {
+      const res = await venice("/audio/retrieve", { model: q.model || "ace-step-15", queue_id: q.queue_id, delete_media_on_completion: true }, { raw: true });
+      const type = res.headers.get("content-type") || "";
+      if (/^audio\//i.test(type) || /octet-stream/i.test(type)) {
+        const blob = await res.blob();
+        spec.cost = 0.03 * jobs.length; spec.renderer = "venice:ace-step-15";
+        state.cost += spec.cost; localStorage.setItem(LS.cost, String(state.cost));
+        return blob;
+      }
+      const d = await res.json();
+      const st = String(d.status || "").toUpperCase();
+      if (/FAIL|ERROR|CANCEL|REJECT/.test(st)) { if (jobs.length === 1) throw new Error("Venice couldn't make the track (" + st.toLowerCase() + ")."); jobs.splice(jobs.indexOf(q), 1); break; }
+      expected = Math.max(expected, d.average_execution_time || 0);
+    }
+    onStatus && onStatus(Math.round(elapsed / 1000), Math.round(expected / 1000), hedged);
+  }
+  throw new Error("That render took too long.");
+}
+
+/* ---------- the library (IndexedDB) ---------- */
+const db = {
+  open() { return new Promise((ok, no) => { const r = indexedDB.open("gandora", 3); r.onupgradeneeded = () => { const d = r.result; for (const s of ["tracks", "stations", "tapes"]) if (!d.objectStoreNames.contains(s)) d.createObjectStore(s, { keyPath: "id" }); }; r.onsuccess = () => ok(r.result); r.onerror = () => no(r.error); }); },
+  async put(t, store = "tracks") { const d = await this.open(); return new Promise((ok, no) => { const tx = d.transaction(store, "readwrite"); tx.objectStore(store).put(t); tx.oncomplete = ok; tx.onerror = () => no(tx.error); }); },
+  async all(store = "tracks") { const d = await this.open(); return new Promise((ok, no) => { const r = d.transaction(store).objectStore(store).getAll(); r.onsuccess = () => ok(r.result.sort((a, b) => (b.last || b.made) - (a.last || a.made))); r.onerror = () => no(r.error); }); },
+  async del(id, store = "tracks") { const d = await this.open(); return new Promise((ok, no) => { const tx = d.transaction(store, "readwrite"); tx.objectStore(store).delete(id); tx.oncomplete = ok; tx.onerror = () => no(tx.error); }); },
+};
+
+/* ---------- stations: a seed, its taste, and what it has played; resumable from the seed screen ---------- */
+async function saveStation() {
+  if (!state.stationId) return;
+  const specs = state.history.slice(-8).map(({ id, title, tags, bpm, key, energy, reaction, made }) => ({ id, title, tags, bpm, key, energy, reaction, made }));
+  await db.put({ id: state.stationId, seed: state.seed, name: state.station, taste: state.taste, history: specs, made: +state.stationId.split("-")[1] || Date.now(), last: Date.now(), played: (state.played || 0), look: state.look || "rings", palette: state.palette || "duo" }, "stations");
+}
+async function listStations() {
+  const list = await db.all("stations"); const box = $("#stations"), row = $("#stationRow"); row.innerHTML = "";
+  box.classList.toggle("hidden", !list.length);
+  for (const s of list) {
+    const d = document.createElement("div"); d.className = "s" + (s.id === state.stationId ? " on" : "");
+    const c = document.createElement("canvas"); c.width = c.height = 144;
+    drawCover(c, { seed: s.seed, title: "", tags: "", bpm: 100, key: KEYS[hash32(s.seed) % 12], energy: 0.5 }, { lit: 0.9 });
+    d.append(c, Object.assign(document.createElement("b"), { textContent: s.name || s.seed }), Object.assign(document.createElement("small"), { textContent: `${s.played || 0} tracks` }));
+    d.addEventListener("click", () => resumeStation(s));
+    const dots = Object.assign(document.createElement("button"), { className: "dots", textContent: "⋯", title: "rename, reset or delete" });
+    dots.addEventListener("click", (e) => { e.stopPropagation(); stationSheet(s.id); });
+    d.append(dots);
+    row.append(d);
+  }
+}
+/* the station sheet: rename, reset its taste, delete it (kept tracks stay) */
+async function stationSheet(id) {
+  const s = (await db.all("stations")).find((x) => x.id === id); if (!s) return;
+  const p = $("#stationSheet"); p.innerHTML = "";
+  p.append(Object.assign(document.createElement("h4"), { textContent: "STATION" }));
+  const name = document.createElement("input"); name.value = s.name || ""; name.placeholder = s.seed; name.maxLength = 60;
+  p.append(Object.assign(document.createElement("label"), { textContent: "name" }), name, Object.assign(document.createElement("label"), { textContent: "seed · " + s.seed + " · " + (s.played || 0) + " tracks" }));
+  const lookRow = document.createElement("div"); lookRow.className = "row"; lookRow.style.marginTop = "8px";
+  p.append(Object.assign(document.createElement("label"), { textContent: "look" }));
+  for (const lk of LOOKS) {
+    const b = Object.assign(document.createElement("button"), { textContent: lk.toUpperCase(), className: (s.look || "rings") === lk ? "go" : "" });
+    b.addEventListener("click", async () => {
+      s.look = lk; await db.put(s, "stations");
+      for (const t of (await db.all()).filter((t) => t.spec.stationId === id)) { t.spec.look = lk; await db.put(t); }
+      if (state.stationId === id) { state.look = lk; if (state.current) { state.current.spec.look = lk; drawCover($("#cover canvas"), state.current.spec); } if (state.nextJob) state.nextJob.spec.look = lk; }
+      for (const x of lookRow.children) x.className = x.textContent === lk.toUpperCase() ? "go" : "";
+      toast(`Look: ${lk}.`);
+    });
+    lookRow.append(b);
+  }
+  p.append(lookRow);
+  const palRow = document.createElement("div"); palRow.className = "row"; palRow.style.marginTop = "8px";
+  p.append(Object.assign(document.createElement("label"), { textContent: "palette" }));
+  for (const pm of PALETTES) {
+    const b = Object.assign(document.createElement("button"), { textContent: pm.toUpperCase(), className: (s.palette || "duo") === pm ? "go" : "" });
+    b.addEventListener("click", async () => {
+      s.palette = pm; await db.put(s, "stations");
+      for (const t of (await db.all()).filter((t) => t.spec.stationId === id)) { t.spec.palette = pm; await db.put(t); }
+      if (state.stationId === id) { state.palette = pm; if (state.current) { state.current.spec.palette = pm; drawCover($("#cover canvas"), state.current.spec); } if (state.nextJob) state.nextJob.spec.palette = pm; }
+      for (const x of palRow.children) x.className = x.textContent === pm.toUpperCase() ? "go" : "";
+      toast(`Palette: ${pm}.`);
+    });
+    palRow.append(b);
+  }
+  p.append(palRow);
+  const row = document.createElement("div"); row.className = "row";
+  const save = Object.assign(document.createElement("button"), { className: "go", textContent: "SAVE" });
+  save.addEventListener("click", async () => { s.name = name.value.trim().slice(0, 60); await db.put(s, "stations"); if (state.stationId === id) { state.station = s.name; $("#stationName").textContent = s.name || s.seed; } p.classList.add("hidden"); listStations().catch(() => {}); toast("Renamed."); });
+  const reset = Object.assign(document.createElement("button"), { textContent: "RESET TASTE" });
+  reset.addEventListener("click", async () => { if (!confirm("Forget what this station has learned? Its tracks stay.")) return; s.taste = { like: [], avoid: [], notes: [] }; s.history = []; await db.put(s, "stations"); if (state.stationId === id) { state.taste = s.taste; state.history = []; } p.classList.add("hidden"); toast("Taste reset."); });
+  const del = Object.assign(document.createElement("button"), { className: "bad", textContent: "DELETE STATION" });
+  del.addEventListener("click", async () => {
+    if (!confirm(`Delete “${s.name || s.seed}” and its unkept tracks? Kept tracks stay in the library.`)) return;
+    for (const t of (await db.all()).filter((t) => t.spec.stationId === id && !t.kept)) await db.del(t.id);
+    await db.del(id, "stations");
+    if (state.stationId === id) { state.audio.pause(); state.playing = false; setPlayIcon(); state.current = null; state.nextJob = null; state.stationId = ""; state.seed = ""; state.station = ""; $("#player").classList.add("hidden"); $("#seed").classList.remove("hidden"); $("#nowRow").classList.add("hidden"); setUrl(); }
+    p.classList.add("hidden"); listStations().catch(() => {}); toast("Station deleted.");
+  });
+  const close = Object.assign(document.createElement("button"), { textContent: "CLOSE" }); close.addEventListener("click", () => p.classList.add("hidden"));
+  row.append(save, reset, del, close); p.append(row); p.classList.remove("hidden"); name.focus({ preventScroll: true });
+}
+$("#stationName").addEventListener("click", () => { if (state.stationId && !state.tape) stationSheet(state.stationId); });
+/* links: the URL follows the station (#seed); a share link carries the current track's sheet music (?t=) so the same
+   song opens and renders for whoever follows it, even with nothing stored anywhere */
+const b64u = (s) => btoa(unescape(encodeURIComponent(s))).replace(/\+/g, "-").replace(/\//g, "_").replace(/=+$/, "");
+const unb64u = (s) => decodeURIComponent(escape(atob(String(s).replace(/-/g, "+").replace(/_/g, "/") + "===".slice((s.length + 3) % 4))));
+function shareLink() {
+  const s = state.current && state.current.spec; if (!s) return "";
+  const t = { seed: s.seed, station: state.station, title: s.title, tags: s.tags, lyrics: s.lyrics || "", bpm: s.bpm, key: s.key, energy: s.energy, line: s.line || "" };
+  return `${location.origin}/?t=${b64u(JSON.stringify(t))}`;
+}
+function setUrl() { try { history.replaceState(null, "", state.seed ? "/#" + encodeURIComponent(state.seed).replace(/%20/g, "+") : "/"); } catch {} }
+async function openStation(seed, { id, name = "", taste, history, played, first, look, palette: pal } = {}) {
+  state.look = look || "rings"; state.palette = pal || "duo";
+  if (state.stationId !== id) { state.audio.pause(); state.playing = false; setPlayIcon(); state.current = null; state.nextJob = null; state.recent = []; state.pos = -1; state.tape = null; }
+  state.seed = seed; state.station = name; state.stationId = id || `s-${Date.now()}-${hash32(seed)}`;
+  state.taste = taste || { like: [], avoid: [], notes: [] }; state.history = history || []; state.played = played || 0;
+  $("#stationName").textContent = name || seed;
+  $("#seed").classList.add("hidden"); $("#player").classList.remove("hidden");
+  setUrl();
+  if (!state.current) {
+    if (first) { first.seed = seed; first.made = Date.now(); state.nextJob = makeJob(first); drawCover($("#cover canvas"), first, { lit: 0.6 }); $("#title").textContent = first.title; saveStation().catch(() => {}); advance(); return; }
+    drawCover($("#cover canvas"), { seed, title: "", tags: "", bpm: 100, key: KEYS[hash32(seed) % 12], energy: 0.5 }, { lit: 0.6 });
+    $("#title").textContent = "tuning…"; $("#tags").textContent = ""; $("#lyric").textContent = ""; keepLabel();
+    saveStation().catch(() => {});
+    // coming back to a station: play its latest track from the library straight away, and cook the next behind it
+    const have = id ? (await db.all()).filter((t) => t.spec.stationId === id) : [];
+    if (have.length) { const t = have[0]; await playJob({ id: ++seq, spec: t.spec, blob: t.blob, err: null, done: Promise.resolve(), stepping: true }); state.recent = [t.id]; state.pos = 0; return; }
+    advance();
+  }
+}
+function resumeStation(s) { openStation(s.seed, s); }
+const KEEP_UNKEPT = 40;
+// every rendered track is saved so the station can be scrolled back through; ❤️ pins one, the rest roll off after KEEP_UNKEPT
+async function remember(job, kept) {
+  const s = job.spec; if (!job.blob) return;
+  s.id ||= s.made + "-" + hash32(s.title);
+  const old = (await db.all()).find((t) => t.id === s.id);
+  await db.put({ id: s.id, spec: s, blob: job.blob, made: s.made, kept: kept || (old && old.kept) || false, plays: (old && old.plays) || s.plays || 0 });
+  const loose = (await db.all()).filter((t) => !t.kept).slice(KEEP_UNKEPT);
+  for (const t of loose) await db.del(t.id);
+}
+
+/* ---------- the station loop ---------- */
+let seq = 0;
+function makeJob(spec) {
+  const job = { id: ++seq, spec, blob: null, err: null, done: null };
+  job.done = (async () => {
+    try { job.blob = await renderTrack(spec, (el, exp, hedged) => {
+      const t = `COOKING ${el}s${exp ? " / ~" + exp + "s" : ""}${hedged ? " · SECOND OVEN LIT" : ""}`;
+      if (state.current === job) $("#cover .veil").textContent = t;
+      else if (state.nextJob === job && state.current) $("#next").textContent = "NEXT · " + spec.title.toUpperCase() + " · " + t;
+    }); }
+    catch (e) { job.err = e; }
+  })();
+  return job;
+}
+let cooking = null;
+function cookNext() {
+  if (state.nextJob) return Promise.resolve(state.nextJob);
+  if (cooking) return cooking;
+  cooking = (async () => {
+    try { const spec = await askDJ(); state.nextJob = makeJob(spec); if (state.current) $("#next").textContent = "NEXT · " + spec.title.toUpperCase(); return state.nextJob; }
+    catch (e) { toast(e.message, 5000); return null; }
+    finally { cooking = null; }
+  })();
+  return cooking;
+}
+async function playJob(job) {
+  const spec = job.spec;
+  state.current = job;
+  if (!job.stepping) { state.history.push(spec); state.played = (state.played || 0) + 1; spec.stationId ||= state.stationId; }
+  keepLabel();
+  $("#title").textContent = spec.title; $("#tags").textContent = `${spec.bpm} bpm · ${spec.key}`;
+  $("#lyric").textContent = spec.line || "";
+  showTags(spec);
+  showLyrics(spec);
+  drawCover($("#cover canvas"), spec);
+  if (!$("#nowRow").classList.contains("hidden")) { drawCover($("#now canvas"), spec); $("#nowTitle").textContent = `${spec.title} · ${state.station || spec.seed}`; }
+  $("#cover").classList.add("cooking"); $("#bar i").style.width = "0";
+  await job.done;
+  if (state.current !== job) return;             // skipped while cooking
+  $("#cover").classList.remove("cooking");
+  if (job.err) { toast(job.err.message, 6000); $("#lyric").textContent = job.err.message + (/limit|budget/i.test(job.err.message) ? "" : " · skip to try the next"); return; }
+  if (state.audio.src) URL.revokeObjectURL(state.audio.src);
+  state.audio.src = URL.createObjectURL(job.blob);
+  await remember(job, false).then(keepLabel).catch(() => {}); saveStation().catch(() => {});
+  if (job.fileInto) { const tp = (await db.all("tapes")).find((t) => t.id === job.fileInto); if (tp && !tp.ids.includes(spec.id)) { tp.ids.push(spec.id); await db.put(tp, "tapes"); } }
+  if (!job.stepping) { state.recent = state.recent.slice(0, state.pos + 1); state.recent.push(spec.id); state.pos = state.recent.length - 1; }
+  drawTrail().catch(() => {});
+  try { await state.audio.play(); state.playing = true; setPlayIcon(); vizStart(); } catch { toast("Tap play."); }
+  cookNext();                                     // render ahead while this one plays
+}
+/* the trail: every track this station has played, oldest left, newest right, the one playing lit. Tapping one plays it and
+   makes it the point back/forward walk from; the trail is the station's own history, so it survives a refresh. */
+let trailIds = [];
+async function drawTrail() {
+  const el = $("#trail"); if (!el) return;
+  const rows = (await db.all()).filter((t) => t.spec && t.spec.stationId === state.stationId).sort((a, b) => a.made - b.made);
+  trailIds = rows.map((t) => t.id);
+  const cur = state.current && state.current.spec && state.current.spec.id;
+  if (trailIds.length < 2) { el.textContent = ""; return; }
+  el.textContent = "";
+  for (const t of rows) {
+    const c = document.createElement("canvas"); c.width = c.height = 120;
+    drawCover(c, t.spec); c.title = t.spec.title; c.dataset.id = t.id;
+    if (t.kept) c.classList.add("kept"); if (t.id === cur) c.classList.add("on");
+    el.append(c);
+  }
+  const on = el.querySelector(".on"); if (on) on.scrollIntoView({ inline: "center", block: "nearest", behavior: "smooth" });
+}
+$("#trail").addEventListener("click", async (e) => {
+  const c = e.target.closest("canvas"); if (!c) return;
+  const id = c.dataset.id; if (state.current && state.current.spec && state.current.spec.id === id) return;
+  const row = (await db.all()).find((t) => t.id === id); if (!row) return;
+  state.recent = trailIds.slice(); state.pos = trailIds.indexOf(id);
+  state.audio.pause();
+  await playJob({ id: ++seq, spec: row.spec, blob: row.blob, err: null, done: Promise.resolve(), stepping: true });
+});
+// step through what has already played this session: -1 back, +1 forward; false when there's nothing there
+async function step(dir) {
+  const i = state.pos + dir; if (i < 0 || i >= state.recent.length) return false;
+  const row = (await db.all()).find((t) => t.id === state.recent[i]); if (!row) return false;
+  state.pos = i; state.audio.pause();
+  await playJob({ id: ++seq, spec: row.spec, blob: row.blob, err: null, done: Promise.resolve(), stepping: true });
+  return true;
+}
+/* shuffle: a track the station already made, weighted by how much the net thinks you'd like it and whether you kept it,
+   never one of the last few heard; null when the library is too thin */
+async function shuffled() {
+  const rows = (await db.all()).filter((t) => t.spec.stationId === state.stationId && t.blob);
+  const avoid = new Set(state.recent.slice(-4));
+  const pool = rows.filter((t) => !avoid.has(t.id)); if (pool.length < 3) return null;
+  const net = typeof brainNow === "function" ? brainNow() : null;
+  const w = pool.map((t) => Math.exp(3 * (net ? net.predict(t.spec) : 0.5)) * (t.kept ? 2 : 1) * (1 + 0.3 * Math.log1p(t.plays || 0)));
+  let r = Math.random() * w.reduce((a, b) => a + b, 0);
+  for (let i = 0; i < pool.length; i++) { r -= w[i]; if (r <= 0) return pool[i]; }
+  return pool[pool.length - 1];
+}
+async function advance() {
+  // a tape playing: the next track on it, around again if it repeats, otherwise back to the station
+  if (state.tape) {
+    const tp = (await db.all("tapes")).find((t) => t.id === state.tape.id);
+    if (tp) { const n = state.tape.i + 1; if (n < tp.ids.length || state.tape.loop) return playTape(tp, n); }
+    state.tape = null; $("#stationName").textContent = state.station || state.seed; toast("End of the tape — back to the station.");
+  }
+  // a shared tape still rendering: its next track comes before anything fresh
+  if (state.tapeQueue && state.tapeQueue.length && !state.nextJob) {
+    const t = state.tapeQueue.shift(); const spec = { ...t, seed: t.seed || state.seed, made: Date.now() };
+    state.nextJob = makeJob(spec); state.nextJob.fileInto = state.sharedTapeId;
+  }
+  if (await step(+1)) return;                      // forward through the session first, then cook new
+  if (!state.nextJob && state.after) { state.nextJob = state.after; state.after = null; }
+  if (state.shuffle && Math.random() < 0.5) {
+    const t = await shuffled();
+    if (t) { state.audio.pause(); await playJob({ id: ++seq, spec: t.spec, blob: t.blob, err: null, done: Promise.resolve() }); return; }
+  }
+  const job = state.nextJob || await cookNext();
+  state.nextJob = null; $("#next").textContent = "";
+  if (!job) return;
+  await playJob(job);
+  cookNext();
+}
+state.audio.addEventListener("ended", () => { state.playing = false; setPlayIcon(); vizStop(); advance(); });
+state.audio.addEventListener("pause", () => { if (!state.audio.ended) { state.playing = false; setPlayIcon(); vizStop(); } });
+state.audio.addEventListener("play", () => { state.playing = true; setPlayIcon(); vizStart(); });
+state.audio.addEventListener("timeupdate", () => { if (state.audio.duration) $("#bar i").style.width = (state.audio.currentTime / state.audio.duration * 100) + "%"; });
+function setPlayIcon() { $("#playIco").innerHTML = state.playing ? '<path d="M6 5h4v14H6zm8 0h4v14h-4z"/>' : '<path d="M8 5v14l11-7z"/>'; }
+
+/* ---------- reactions: each one edits the taste, and the next cover shows it ---------- */
+const EMOJI_MEANING = {
+  "🔥": { like: "more exactly like the current track" }, "❤️": { like: "the current track's sound; the listener loves this one" },
+  "😴": { avoid: "this sleepy energy; wake it up", energy: +0.25 }, "🌧️": { like: "sadder, more melancholy, minor keys" },
+  "⚡": { like: "faster and louder", energy: +0.3 }, "🎸": { like: "more guitar" }, "🎹": { like: "more piano and keys" },
+  "🚫": { avoid: "anything like the current track" },
+};
+async function react(emoji, text) {
+  const cur = state.current && state.current.spec; if (!cur) return;
+  const m = EMOJI_MEANING[emoji] || (emoji ? { notes: emoji } : null);
+  const who = `${cur.title} (${cur.tags.split(",").slice(0, 3).join(",")})`;
+  if (m) {
+    if (m.like) state.taste.like.push(`${m.like} — re ${who}`);
+    if (m.avoid) state.taste.avoid.push(`${m.avoid} — re ${who}`);
+    if (m.notes) state.taste.notes.push(`${m.notes} (an emoji, re ${who})`);
+    cur.reaction = (cur.reaction ? cur.reaction + " " : "") + emoji;
+  }
+  if (text) { state.taste.notes.push(`${text} (re ${who})`); cur.reaction = (cur.reaction ? cur.reaction + " " : "") + `"${text}"`; }
+  for (const k of ["like", "avoid", "notes"]) state.taste[k] = state.taste[k].slice(-8);
+  // a next track already in the oven was planned before this was said: it still plays (it's paid for), the one after hears it
+  const later = !!state.nextJob;
+  if (!later) cookNext();
+  saveStation().catch(() => {});
+  remember(state.current, false).catch(() => {});   // the reaction rides with the track in the library
+  toast(`${emoji || "Noted"} — the ${later ? "track after next" : "next track"} hears it.`);
+}
+
+/* ---------- UI wiring ---------- */
+$("#seedIn").addEventListener("input", (e) => {
+  const v = e.target.value.trim();
+  const c = $("#seedCover"); if (!v) { c.classList.remove("on"); return; }
+  c.classList.add("on"); drawCover(c.querySelector("canvas"), { seed: v, title: "", tags: "", bpm: 100, key: KEYS[hash32(v) % 12], energy: 0.5 });
+  $("#seedHint").textContent = "↵ to start the station";
+});
+$("#seedForm").addEventListener("submit", (e) => {
+  e.preventDefault();
+  const v = $("#seedIn").value.trim(); if (!v) return;
+  openStation(v);                                  // a new seed is a new station
+});
+/* tags as controls: tap a tag for more of it, again for less, again to let it go; + adds one of your own.
+   Each tap is a reaction (+word / -word) the DJ and the taste net both see. */
+const tagState = (spec, tag) => { const r = " " + String(spec.reaction || "") + " "; const t = tag.replace(/\s+/g, "_"); const L = r.lastIndexOf(" +" + t + " "), N = r.lastIndexOf(" -" + t + " "), Z = r.lastIndexOf(" ~" + t + " "); const m = Math.max(L, N, Z); return m < 0 || m === Z ? "" : m === L ? "like" : "avoid"; };
+const reactionEmoji = (r) => String(r || "").replace(/(?:^|\s)[+\-~][^\s]+/g, "").replace(/"[^"]*"/g, "💬").replace(/\[skipped\]/g, "⏭").replace(/\s+/g, "");
+state.tagsOpen = false;                             // the tag row shows a few, and folds the rest behind "… more"
+function showTags(spec) {
+  const row = $("#tagRow"); row.innerHTML = ""; const list = $("#tagList"); list.innerHTML = "";
+  const tags = String(spec.tags || "").split(",").map((t) => t.trim()).filter(Boolean).slice(0, 12);
+  const extra = [...String(spec.reaction || "").matchAll(/(?:^|\s)\+([^\s]+)/g)].map((m) => m[1].replace(/_/g, " ")).filter((t) => !tags.includes(t));
+  const total = tags.length + extra.length, liked = [...tags, ...extra].filter((t) => tagState(spec, t)).length;
+  // one line closed: TAGS ▾ · bpm · key; open: every tag as a chip, and + tag
+  for (const m of [`${spec.bpm} bpm`, spec.key]) { const b = document.createElement("button"); b.className = "meta"; b.textContent = m; b.disabled = true; row.append(b); }
+  const f = document.createElement("button"); f.className = "fold"; f.textContent = (state.tagsOpen ? "TAGS ▴" : "TAGS ▾") + (liked && !state.tagsOpen ? ` ·${liked}` : "");
+  f.addEventListener("click", () => { state.tagsOpen = !state.tagsOpen; showTags(spec); }); row.append(f);
+  if (!state.tagsOpen) return;
+  for (const tag of [...tags, ...extra]) {
+    const b = document.createElement("button"); b.textContent = tag; b.className = tagState(spec, tag);
+    b.addEventListener("click", () => tagTap(spec, tag, b));
+    list.append(b);
+  }
+  const add = document.createElement("button"); add.className = "add"; add.textContent = "+ tag";
+  add.addEventListener("click", () => {
+    const inp = document.createElement("input"); inp.placeholder = "more …"; inp.maxLength = 30; list.replaceChild(inp, add); inp.focus();
+    const done = () => { const v = inp.value.trim().toLowerCase(); if (v) { tagTap(spec, v, null, "like"); } else showTags(spec); };
+    inp.addEventListener("keydown", (e) => { if (e.key === "Enter") { e.preventDefault(); done(); } if (e.key === "Escape") showTags(spec); });
+    inp.addEventListener("blur", done);
+  });
+  list.append(add);
+}
+function tagTap(spec, tag, btn, force) {
+  const cur = force ? "" : tagState(spec, tag), next = force || (cur === "" ? "like" : cur === "like" ? "avoid" : "");
+  const t = tag.replace(/\s+/g, "_");
+  if (next === "") { spec.reaction = (spec.reaction || "") + " ~" + t; state.taste.like = state.taste.like.filter((s) => !s.startsWith("the tag " + JSON.stringify(tag))); state.taste.avoid = state.taste.avoid.filter((s) => !s.startsWith("the tag " + JSON.stringify(tag))); toast(`${tag}: let go.`); }
+  else {
+    spec.reaction = (spec.reaction || "") + " " + (next === "like" ? "+" : "-") + t;
+    const note = `the tag ${JSON.stringify(tag)}`;
+    state.taste.like = state.taste.like.filter((s) => !s.startsWith(note)); state.taste.avoid = state.taste.avoid.filter((s) => !s.startsWith(note));
+    (next === "like" ? state.taste.like : state.taste.avoid).push(note + (next === "like" ? " — more of this" : " — less of this"));
+    toast(next === "like" ? `More ${tag}.` : `Less ${tag}.`);
+  }
+  for (const k of ["like", "avoid"]) state.taste[k] = state.taste[k].slice(-10);
+  showTags(spec);
+  if (state.current && state.current.spec === spec) remember(state.current, false).catch(() => {});
+  saveStation().catch(() => {});
+  if (!state.nextJob) cookNext();
+  if (typeof rebuildBrains === "function") rebuildBrains().catch(() => {});
+}
+$("#lyric").addEventListener("click", () => { const s = $("#say"); s.focus(); s.placeholder = "reply to the DJ…"; });
+/* lyrics: the DJ's words for the track, under the title; tap LYRICS or the cover */
+function showLyrics(spec) {
+  const has = !!(spec.lyrics && spec.lyrics.trim()), p = $("#lyrics");
+  p.innerHTML = ""; p.classList.toggle("none", !has);
+  if (!has) { p.textContent = "instrumental"; return; }
+  for (const line of spec.lyrics.split(/\r?\n/)) {
+    const m = line.match(/^\s*\[([^\]]+)\]\s*$/);
+    if (m) p.append(Object.assign(document.createElement("span"), { className: "sec", textContent: m[1].toUpperCase() }));
+    else p.append(document.createTextNode(line + "\n"));
+  }
+}
+function toggleLyrics() {
+  state.lyricsOpen = !state.lyricsOpen;
+  $("#cover").classList.toggle("flipped", state.lyricsOpen); $("#lyricsBtn").classList.toggle("on", state.lyricsOpen);
+  $("#lyricsBtn").textContent = state.lyricsOpen ? "⇄ COVER" : "⇄ LYRICS";
+}
+$("#lyricsBtn").addEventListener("click", toggleLyrics);
+$("#cover").addEventListener("click", toggleLyrics);
+/* keep: the one and only pin, under the controls; emoji are reactions, not saves */
+async function keepLabel() {
+  const b = $("#keep"), cur = state.current && state.current.spec;
+  if (!cur || !cur.id) { b.disabled = true; b.classList.remove("on"); b.textContent = "➕ KEEP"; return; }
+  const row = (await db.all()).find((t) => t.id === cur.id);
+  b.disabled = false; b.classList.toggle("on", !!(row && row.kept)); b.textContent = row && row.kept ? "✓ KEPT" : "➕ KEEP";
+  $("#share").disabled = false;
+}
+$("#share").addEventListener("click", async () => {
+  const url = shareLink(); if (!url) return;
+  const s = state.current.spec, text = `${s.title} · a gandora track from the ${state.station || s.seed} station`;
+  if (navigator.share) { try { await navigator.share({ title: s.title, text, url }); return; } catch {} }
+  try { await navigator.clipboard.writeText(url); toast("Link copied. Whoever opens it gets this song, freshly rendered."); } catch { prompt("Copy this link:", url); }
+});
+$("#keep").addEventListener("click", async () => {
+  const cur = state.current && state.current.spec; if (!cur || !cur.id || !state.current.blob) return;
+  const row = (await db.all()).find((t) => t.id === cur.id);
+  await db.put({ ...(row || { id: cur.id, spec: cur, blob: state.current.blob, made: cur.made }), kept: !(row && row.kept) });
+  await keepLabel(); toast(row && row.kept ? "Unkept." : "Kept — it stays in your library.");
+});
+// back to the seed screen keeps the station playing: a small now-playing strip leads back to it
+$("#back").addEventListener("click", () => {
+  $("#player").classList.add("hidden"); $("#seed").classList.remove("hidden");
+  const cur = state.current && state.current.spec;
+  $("#nowRow").classList.toggle("hidden", !cur);
+  if (cur) { drawCover($("#now canvas"), cur); $("#nowTitle").textContent = `${cur.title} · ${state.station || cur.seed}`; }
+  $("#seedIn").value = ""; $("#seedCover").classList.remove("on"); $("#seedHint").textContent = cur ? "type a new seed for a new station, or pick one below" : "a mood, a line, a place, a word";
+  listStations().catch(() => {});
+});
+$("#now").addEventListener("click", () => { $("#seed").classList.add("hidden"); $("#player").classList.remove("hidden"); });
+$("#play").addEventListener("click", async () => {
+  if (!state.audio.src) return;
+  if (state.playing) { state.audio.pause(); state.playing = false; vizStop(); } else { try { await state.audio.play(); state.playing = true; vizStart(); } catch {} }
+  setPlayIcon();
+});
+$("#skip").addEventListener("click", () => { state.audio.pause(); state.playing = false; setPlayIcon(); if (state.current) state.current.spec.reaction = (state.current.spec.reaction || "") + " [skipped]"; advance(); });
+$("#remix").addEventListener("click", async () => {
+  const cur = state.current && state.current.spec; if (!cur) return;
+  state.remixOf = cur; toast("Remixing — it goes next.");
+  try {
+    const spec = await askDJ(); spec.remixOf = cur.id;
+    const job = makeJob(spec);
+    if (state.nextJob && !state.nextJob.blob) state.after = state.nextJob;   // the one already cooking plays after the remix
+    state.nextJob = job; $("#next").textContent = "NEXT · " + spec.title.toUpperCase() + " · REMIX";
+  } catch (e) { toast(e.message, 5000); }
+  finally { state.remixOf = null; }
+});
+$("#shuffle").addEventListener("click", () => { state.shuffle = !state.shuffle; $("#shuffle").classList.toggle("on", state.shuffle); toast(state.shuffle ? "Shuffle: mixing the station's library in." : "Shuffle off: all fresh."); });
+$("#loop").addEventListener("click", () => { state.audio.loop = !state.audio.loop; $("#loop").classList.toggle("on", state.audio.loop); toast(state.audio.loop ? "Repeating this track." : "Back to the station."); });
+$("#prev").addEventListener("click", () => { if (state.audio.src) { state.audio.currentTime = 0; state.audio.play().catch(() => {}); } });
+$("#backTrack").addEventListener("click", async () => { if (!(await step(-1))) toast("That's the first track of this session."); });
+/* the emoji row is the listener's eight most used, seeded with the defaults; ＋ opens the picker */
+const EMOJI_SETS = {
+  "REACT": "🔥 ❤️ ⚡ 😴 🌧️ 🚫 🎸 🎹 🥁 🎤 🎺 🎻 🎷 🪗 🎧 🔊 🔉 🎶 🎵 💃 🕺 🤘 👏 🙌 👍 👎 🤌 💯 🤩 🤯 🤔 😎 😍 🥰 🥺 😭 😢 😤 😱 🤮 💤 🥱 😐 🙄 😬 🤪 🤬 👻",
+  "MOOD": "🌙 🌞 🌅 🌆 🌃 🌌 ⭐ ✨ 🌟 💥 ❄️ 🌊 🌋 🌪️ ☔ 🌈 🍂 🌸 🌹 🌵 🍄 🌍 🏙️ 🏜️ 🏖️ 🏔️ 🚇 🚗 🛸 🚀 🕯️ 💡 🔮 🪄 💎 🔗 ⏳ 🧠 🫀 💀 👽 🤖 🐉 🦋 🐝 🦊 🐱 🐶",
+  "TASTE": "☕ 🍵 🍷 🍺 🥃 🍫 🍭 🍓 🍋 🌶️ 🧈 🍰 🍕 🍜 🥟 🍱 🍼 🧊 🔥 💨 🫧 🌫️ 🪨 🪶 🧵 🧶 🎨 🖼️ 📼 📻 📺 💿 📀 🎛️ 🎚️ 🎙️ 📼 🕳️",
+};
+const EMOJI_KEY = "gandora.emoji";
+function emojiCounts() { try { return JSON.parse(localStorage.getItem(EMOJI_KEY) || "{}"); } catch { return {}; } }
+function bumpEmoji(e) { const c = emojiCounts(); c[e] = (c[e] || 0) + 1; localStorage.setItem(EMOJI_KEY, JSON.stringify(c)); }
+const EMOJI_DEFAULT = ["🔥", "❤️", "😴", "🌧️", "⚡", "🎸", "🎹", "🚫"];
+function showEmojiRow() {
+  const c = emojiCounts(), row = $("#emojis"), more = $("#more");
+  const seeded = EMOJI_DEFAULT.map((e, i) => [e, (c[e] || 0) + (8 - i) * 0.01]);          // defaults keep their order until use says otherwise
+  for (const e of Object.keys(c)) if (!EMOJI_DEFAULT.includes(e)) seeded.push([e, c[e]]);
+  const top = seeded.sort((a, b) => b[1] - a[1]).slice(0, 8).map((x) => x[0]);
+  for (const b of [...row.querySelectorAll("button[data-e]")]) b.remove();
+  for (const e of top) { const b = document.createElement("button"); b.dataset.e = e; b.textContent = e; b.title = (EMOJI_MEANING[e] && (EMOJI_MEANING[e].like || EMOJI_MEANING[e].avoid)) || ""; row.insertBefore(b, more); }
+}
+$("#emojis").addEventListener("click", (e) => { const b = e.target.closest("button[data-e]"); if (!b) return; b.classList.add("hit"); setTimeout(() => b.classList.remove("hit"), 300); bumpEmoji(b.dataset.e); react(b.dataset.e); });
+function openPicker() {
+  const p = $("#picker"); p.innerHTML = "";
+  const top = document.createElement("div"); top.className = "top";
+  const inp = document.createElement("input"); inp.placeholder = "or type any emoji…"; inp.maxLength = 8;
+  const go = document.createElement("button"); go.textContent = "SEND"; const close = document.createElement("button"); close.textContent = "CLOSE";
+  const send = () => { const v = inp.value.trim(); if (!v) return; pick(v); };
+  go.addEventListener("click", send); inp.addEventListener("keydown", (e) => { if (e.key === "Enter") { e.preventDefault(); send(); } });
+  close.addEventListener("click", () => p.classList.add("hidden"));
+  top.append(inp, go, close); p.append(top);
+  const pick = (e) => { bumpEmoji(e); react(e); showEmojiRow(); p.classList.add("hidden"); };
+  const c = emojiCounts(), used = Object.entries(c).sort((a, b) => b[1] - a[1]).slice(0, 16).map((x) => x[0]);
+  const sets = used.length ? { "MOST USED": used.join(" "), ...EMOJI_SETS } : EMOJI_SETS;
+  for (const [name, list] of Object.entries(sets)) {
+    p.append(Object.assign(document.createElement("h4"), { textContent: name }));
+    const g = document.createElement("div"); g.className = "g";
+    for (const e of [...new Set(list.split(/\s+/).filter(Boolean))]) { const b = document.createElement("button"); b.textContent = e; b.addEventListener("click", () => pick(e)); g.append(b); }
+    p.append(g);
+  }
+  p.classList.remove("hidden"); inp.focus({ preventScroll: true });
+}
+$("#more").addEventListener("click", () => { const p = $("#picker"); if (p.classList.contains("hidden")) openPicker(); else p.classList.add("hidden"); });
+showEmojiRow();
+$("#sayRow").addEventListener("submit", (e) => { e.preventDefault(); const v = $("#say").value.trim(); if (!v) return; $("#say").value = ""; react("", v); });
+
+/* key box */
+function openKey() { $("#keyIn").value = state.key; $("#djIn").value = state.dj; $("#keyBox").classList.remove("hidden"); $("#keyIn").focus(); }
+$("#keyBtn").addEventListener("click", openKey);
+if (new URLSearchParams(location.search).has("key")) $("#keyBtn").classList.remove("hidden");   // key box is parked for now
+$("#keyCancel").addEventListener("click", () => $("#keyBox").classList.add("hidden"));
+$("#keySave").addEventListener("click", () => {
+  state.key = $("#keyIn").value.trim(); state.dj = $("#djIn").value.trim() || "claude-haiku-5-5";
+  localStorage.setItem(LS.key, state.key); localStorage.setItem(LS.dj, state.dj);
+  $("#keyBox").classList.add("hidden"); keyLabel(); $("#seedIn").focus();
+});
+/* sheets close on a tap outside them */
+const SHEETS = ["#stationSheet", "#picker", "#tapePick"];
+function closeSheets() { for (const s of SHEETS) $(s).classList.add("hidden"); $("#scrim").classList.add("hidden"); }
+$("#scrim").addEventListener("click", closeSheets);
+new MutationObserver(() => { const open = SHEETS.some((s) => !$(s).classList.contains("hidden")); $("#scrim").classList.toggle("hidden", !open); })
+  .observe(document.body, { attributes: true, attributeFilter: ["class"], subtree: true });
+function keyLabel() { $("#keyBtn").textContent = state.key ? "your venice key ✓" : "shared budget · add a venice key"; }
+keyLabel();
+
+/* library */
+$("#libBtn").addEventListener("click", async () => {
+  const list = await db.all(); const g = $("#libGrid"); g.innerHTML = "";
+  $("#libEmpty").classList.toggle("hidden", list.length > 0);
+  const cur = state.current && state.current.spec;
+  const tile = (t, inKept = false) => {
+    const d = document.createElement("div"); d.className = "t" + (cur && t.id === cur.id ? " on" : "");
+    const art = document.createElement("div"); art.className = "art";
+    const c = document.createElement("canvas"); c.width = c.height = 260; drawCover(c, t.spec); art.append(c);
+    if (t.kept && !inKept) art.append(Object.assign(document.createElement("span"), { className: "kept", textContent: "KEPT" }));
+    const re = reactionEmoji(t.spec.reaction).trim();
+    if (re) art.append(Object.assign(document.createElement("span"), { className: "re", textContent: re, title: t.spec.reaction }));
+    const addT = Object.assign(document.createElement("button"), { className: "addTape", textContent: "＋", title: "add to a tape" });
+    addT.addEventListener("click", (e) => { e.stopPropagation(); pickTape(t); });
+    art.append(addT);
+    d.append(art, Object.assign(document.createElement("b"), { textContent: t.spec.title }), Object.assign(document.createElement("small"), { textContent: `${t.spec.bpm} bpm · ${t.spec.key}${(t.plays || 0) > 1 ? " · ×" + t.plays : ""}`, title: t.spec.seed }));
+    d.addEventListener("click", () => { $("#lib").classList.add("hidden"); const job = { id: ++seq, spec: { ...t.spec }, blob: t.blob, err: null, done: Promise.resolve() }; state.seed = t.spec.seed; $("#player").classList.remove("hidden"); $("#seed").classList.add("hidden"); state.audio.pause(); playJob(job); });
+    return d;
+  };
+  // kept first, then everything played, grouped by station (channel), newest station first
+  const stations = await db.all("stations"); const byId = Object.fromEntries(stations.map((s) => [s.id, s]));
+  const head = (text, seed, count) => {
+    const h = document.createElement("h3"); h.style.gridColumn = "1/-1";
+    if (seed) { const c = document.createElement("canvas"); c.width = c.height = 44; drawCover(c, { seed, title: "", tags: "", bpm: 100, key: KEYS[hash32(seed) % 12], energy: 0.5 }); h.append(c); }
+    h.append(Object.assign(document.createElement("span"), { textContent: text }));
+    if (count != null) h.append(Object.assign(document.createElement("small"), { textContent: `· ${count}` }));
+    return h;
+  };
+  // tapes first: a strip of mixtapes, and a way to start one
+  const tapes = await db.all("tapes");
+  g.append(head("TAPES", "", tapes.length));
+  const strip = document.createElement("div"); strip.id = "tapeRow";
+  for (const tp of tapes) {
+    const s = document.createElement("div"); s.className = "s";
+    const tc = document.createElement("div"); tc.className = "tc" + (tp.ids.length < 4 ? " one" : "");
+    const covers = tp.ids.map((id) => list.find((t) => t.id === id)).filter(Boolean).slice(0, tp.ids.length < 4 ? 1 : 4);
+    for (const t of covers) { const c = document.createElement("canvas"); c.width = c.height = 120; drawCover(c, t.spec); tc.append(c); }
+    s.append(tc, Object.assign(document.createElement("b"), { textContent: tp.name }), Object.assign(document.createElement("small"), { textContent: `${tp.ids.length} tracks` }));
+    s.addEventListener("click", () => openTape(tp.id));
+    strip.append(s);
+  }
+  const nw = document.createElement("div"); nw.className = "s new"; nw.innerHTML = '<div class="tc">＋</div><b>new tape</b>';
+  nw.addEventListener("click", async () => { const name = prompt("Name the tape:", ""); if (!name) return; const tp = { id: "tape-" + Date.now(), name: name.trim().slice(0, 60), ids: [], made: Date.now(), last: Date.now() }; await db.put(tp, "tapes"); openTape(tp.id); });
+  strip.append(nw); g.append(strip);
+  const kept = list.filter((t) => t.kept);
+  if (kept.length) { g.append(head("KEPT", "", kept.length)); for (const t of kept) g.append(tile(t, true)); }
+  const groups = new Map();
+  for (const t of list) { const k = t.spec.stationId || "seed:" + t.spec.seed; if (!groups.has(k)) groups.set(k, []); groups.get(k).push(t); }
+  for (const [k, rows] of groups) {
+    const s = byId[k]; const name = (s && s.name) || rows[0].spec.seed, seed = (s && s.seed) || rows[0].spec.seed;
+    g.append(head(name.toUpperCase(), seed, rows.length));
+    for (const t of rows) g.append(tile(t));
+  }
+  $("#libCost").textContent = `~$${state.cost.toFixed(2)} of music rendered from this browser · replays from the library are free`;
+  $("#lib").classList.remove("hidden");
+});
+$("#libClose").addEventListener("click", () => $("#lib").classList.add("hidden"));
+
+/* ---------- mixtapes: a named, ordered list of tracks; play through, repeat all, share as a link ---------- */
+async function pickTape(track) {
+  const p = $("#tapePick"); p.innerHTML = "";
+  const tapes = await db.all("tapes");
+  p.append(Object.assign(document.createElement("h4"), { textContent: "ADD “" + track.spec.title.toUpperCase() + "” TO" }));
+  const add = async (tp) => { if (!tp.ids.includes(track.id)) { tp.ids.push(track.id); tp.last = Date.now(); await db.put(tp, "tapes"); } p.classList.add("hidden"); toast(`On “${tp.name}”.`); };
+  for (const tp of tapes) { const b = document.createElement("button"); b.textContent = `${tp.name} · ${tp.ids.length}`; b.addEventListener("click", () => add(tp)); p.append(b); }
+  const inp = document.createElement("input"); inp.placeholder = "new tape…"; inp.maxLength = 60;
+  inp.addEventListener("keydown", async (e) => { if (e.key !== "Enter") return; e.preventDefault(); const name = inp.value.trim(); if (!name) return; const tp = { id: "tape-" + Date.now(), name, ids: [], made: Date.now(), last: Date.now() }; await add(tp); });
+  const close = document.createElement("button"); close.textContent = "cancel"; close.addEventListener("click", () => p.classList.add("hidden"));
+  p.append(inp, close); p.classList.remove("hidden"); inp.focus({ preventScroll: true });
+}
+state.tape = null;                                   // { id, ids, i, loop } while a tape is playing
+async function tapeRows(tp) { const all = await db.all(); return tp.ids.map((id) => all.find((t) => t.id === id)).filter(Boolean); }
+async function openTape(id) {
+  const tp = (await db.all("tapes")).find((t) => t.id === id); if (!tp) return;
+  $("#lib").classList.add("hidden"); $("#tape").classList.remove("hidden"); $("#tape").dataset.id = id;
+  $("#tapeName").value = tp.name;
+  const rows = await tapeRows(tp), list = $("#tapeList"); list.innerHTML = "";
+  $("#tapeEmpty").classList.toggle("hidden", rows.length > 0);
+  $("#tapeLoop").classList.toggle("go", !!(state.tape && state.tape.id === id && state.tape.loop));
+  rows.forEach((t, i) => {
+    const r = document.createElement("div"); r.className = "row" + (state.current && state.current.spec.id === t.id ? " on" : "");
+    const c = document.createElement("canvas"); c.width = c.height = 120; drawCover(c, t.spec);
+    const m = document.createElement("div"); m.className = "m"; m.append(Object.assign(document.createElement("b"), { textContent: `${i + 1}. ${t.spec.title}` }), Object.assign(document.createElement("small"), { textContent: `${t.spec.bpm} bpm · ${t.spec.key} · ${t.spec.seed}` }));
+    const play = () => playTape(tp, i);
+    c.addEventListener("click", play); m.addEventListener("click", play);
+    const ctl = document.createElement("div"); ctl.className = "ctl";
+    const mv = async (d) => { const j = i + d; if (j < 0 || j >= tp.ids.length) return; [tp.ids[i], tp.ids[j]] = [tp.ids[j], tp.ids[i]]; await db.put(tp, "tapes"); openTape(id); };
+    const up = Object.assign(document.createElement("button"), { textContent: "▲", title: "earlier" }), dn = Object.assign(document.createElement("button"), { textContent: "▼", title: "later" }), rm = Object.assign(document.createElement("button"), { textContent: "✕", title: "remove from tape" });
+    up.addEventListener("click", () => mv(-1)); dn.addEventListener("click", () => mv(1));
+    rm.addEventListener("click", async () => { tp.ids.splice(i, 1); await db.put(tp, "tapes"); openTape(id); });
+    ctl.append(up, dn, rm); r.append(c, m, ctl); list.append(r);
+  });
+}
+async function playTape(tp, i, loop) {
+  const rows = await tapeRows(tp); if (!rows.length) return;
+  i = ((i % rows.length) + rows.length) % rows.length;
+  state.tape = { id: tp.id, ids: rows.map((t) => t.id), i, loop: loop ?? (state.tape && state.tape.id === tp.id ? state.tape.loop : false) };
+  $("#tape").classList.add("hidden"); $("#seed").classList.add("hidden"); $("#player").classList.remove("hidden");
+  $("#stationName").textContent = "📼 " + tp.name;
+  const t = rows[i]; state.audio.pause();
+  await playJob({ id: ++seq, spec: t.spec, blob: t.blob, err: null, done: Promise.resolve(), stepping: true });
+}
+$("#tapePlay").addEventListener("click", async () => { const tp = (await db.all("tapes")).find((t) => t.id === $("#tape").dataset.id); if (tp) playTape(tp, 0); });
+$("#tapeLoop").addEventListener("click", async () => { const tp = (await db.all("tapes")).find((t) => t.id === $("#tape").dataset.id); if (!tp) return; const on = !(state.tape && state.tape.id === tp.id && state.tape.loop); if (state.tape && state.tape.id === tp.id) state.tape.loop = on; else await playTape(tp, 0, on); $("#tapeLoop").classList.toggle("go", on); toast(on ? "Repeating the whole tape." : "Tape plays through once."); });
+$("#tapeName").addEventListener("change", async () => { const tp = (await db.all("tapes")).find((t) => t.id === $("#tape").dataset.id); if (!tp) return; tp.name = $("#tapeName").value.trim().slice(0, 60) || tp.name; await db.put(tp, "tapes"); });
+$("#tapeDelete").addEventListener("click", async () => { const id = $("#tape").dataset.id; if (!confirm("Delete this tape? The tracks stay in the library.")) return; await db.del(id, "tapes"); if (state.tape && state.tape.id === id) state.tape = null; $("#tape").classList.add("hidden"); $("#libBtn").click(); });
+$("#tapeShare").addEventListener("click", async () => {
+  const tp = (await db.all("tapes")).find((t) => t.id === $("#tape").dataset.id); if (!tp) return;
+  const rows = await tapeRows(tp);
+  const payload = { name: tp.name, tracks: rows.map(({ spec: s }) => ({ seed: s.seed, station: s.station || "", title: s.title, tags: s.tags, lyrics: s.lyrics || "", bpm: s.bpm, key: s.key, energy: s.energy, line: s.line || "" })) };
+  const url = `${location.origin}/?tape=${b64u(JSON.stringify(payload))}`;
+  if (navigator.share) { try { await navigator.share({ title: tp.name, text: `${tp.name} · a gandora mixtape, ${rows.length} tracks`, url }); return; } catch {} }
+  try { await navigator.clipboard.writeText(url); toast("Tape link copied. It renders each track for whoever opens it."); } catch { prompt("Copy this link:", url); }
+});
+$("#tapeClose").addEventListener("click", () => $("#tape").classList.add("hidden"));
+// a shared tape (?tape=): make it a tape of this browser's own, rendering each track as it comes up
+const sharedTape = new URLSearchParams(location.search).get("tape");
+if (sharedTape) {
+  (async () => {
+    try {
+      const t = JSON.parse(unb64u(sharedTape)); if (!t || !Array.isArray(t.tracks) || !t.tracks.length) throw 0;
+      const tp = { id: "tape-" + Date.now(), name: String(t.name || "shared tape").slice(0, 60), ids: [], pending: t.tracks, made: Date.now(), last: Date.now() };
+      await db.put(tp, "tapes");
+      // render the tracks in order as the station's next ones, and file each into the tape as it lands
+      state.sharedTapeId = tp.id; state.tapeQueue = t.tracks.slice();
+      openStation(t.tracks[0].seed, { name: t.tracks[0].station || "" });
+      toast(`Tape “${tp.name}”: ${t.tracks.length} tracks to render, one by one.`);
+    } catch { toast("That link didn't carry a tape."); }
+  })();
+}
+$("#libBtn2").addEventListener("click", () => $("#libBtn").click());
+$("#tasteBtn2").addEventListener("click", () => $("#tasteBtn").click());
+
+/* ---------- taste: every track as a point (tempo, energy; colour = key), every reaction a signed weight on it.
+   The shading is a kernel estimate of "would like" from the reactions, huebrain-style: lit where the warm ones
+   outweigh the cold ones, dim where the cold ones win, dark where nothing has been heard yet. ---------- */
+function reactionWeight(spec) {
+  const r = String(spec.reaction || "");
+  let w = 0;
+  for (const ch of r.replace(/"[^"]*"/g, "")) { if ("🔥❤️⚡🎸🎹".includes(ch) && ch !== "️") w += 1; if ("🚫😴".includes(ch)) w -= 1; }
+  if (/\[skipped\]/.test(r)) w -= 1.5;
+  if (/"[^"]*"/.test(r)) w += 0.3;             // words mean engagement, mildly warm
+  return w;
+}
+function drawTaste(rows, title) {
+  const c = $("#tasteMap"), ctx = c.getContext("2d"), W = c.width, H = c.height, pad = 70;
+  const X = (bpm) => pad + (Math.min(180, Math.max(60, bpm)) - 60) / 120 * (W - 2 * pad);
+  const Y = (en) => H - pad - Math.min(1, Math.max(0, en)) * (H - 2 * pad);
+  const pts = rows.map((t) => ({ x: X(+t.spec.bpm || 100), y: Y(+t.spec.energy || 0.5), w: reactionWeight(t.spec) + (t.kept ? 1.5 : 0), hue: keyHue(t.spec.key), minor: /m(in|inor)?\b/i.test(t.spec.key || "") && !/maj/i.test(t.spec.key || ""), t }));
+  ctx.fillStyle = "#121216"; ctx.fillRect(0, 0, W, H);
+  // the field: kernel-weighted reactions, with every played track counting a little as "heard"
+  const cell = 18, sig = 90;
+  for (let gy = pad; gy < H - pad; gy += cell) for (let gx = pad; gx < W - pad; gx += cell) {
+    let like = 0, heard = 0;
+    for (const p of pts) { const d2 = (p.x - gx) ** 2 + (p.y - gy) ** 2, k = Math.exp(-d2 / (2 * sig * sig)); like += k * p.w; heard += k; }
+    if (heard < 0.02) continue;
+    const v = Math.tanh(like / 1.5);                      // -1..1; 0 means heard but nothing said
+    const a = Math.min(0.5, heard * 0.3);
+    if (Math.abs(v) < 0.05) ctx.fillStyle = `hsl(240 6% 30% / ${a * 0.5})`;                      // heard, neutral
+    else ctx.fillStyle = v > 0 ? `hsl(44 60% 60% / ${a * Math.abs(v)})` : `hsl(220 30% 45% / ${a * Math.abs(v)})`;
+    ctx.fillRect(gx, gy, cell, cell);
+  }
+  // axes
+  ctx.strokeStyle = "#232329"; ctx.lineWidth = 2; ctx.strokeRect(pad, pad, W - 2 * pad, H - 2 * pad);
+  ctx.fillStyle = "#8a8a96"; ctx.font = `600 ${W * 0.018}px ui-monospace, Menlo, monospace`; ctx.textAlign = "center";
+  for (const b of [60, 90, 120, 150, 180]) ctx.fillText(b + "", X(b), H - pad + 34);
+  ctx.textAlign = "right"; for (const e of [0, 0.5, 1]) ctx.fillText(e === 0 ? "calm" : e === 1 ? "wild" : "·", pad - 14, Y(e) + 6);
+  // the points: colour is the key, size is how much was said about it, ring warm or cold
+  for (const p of pts) {
+    const r = (W * 0.012) * (1 + Math.min(3, Math.abs(p.w)) * 0.35);
+    ctx.beginPath(); ctx.arc(p.x, p.y, r, 0, Math.PI * 2);
+    ctx.fillStyle = `hsl(${p.hue} ${p.minor ? 55 : 80}% ${p.minor ? 48 : 62}% / .9)`; ctx.fill();
+    if (p.w !== 0) { ctx.lineWidth = 3; ctx.strokeStyle = p.w > 0 ? "hsl(44 80% 70%)" : "hsl(220 40% 60%)"; ctx.stroke(); }
+    if (p.t.kept) { ctx.beginPath(); ctx.arc(p.x, p.y, r + 7, 0, Math.PI * 2); ctx.lineWidth = 1.5; ctx.strokeStyle = "hsl(44 80% 70% / .7)"; ctx.stroke(); }
+  }
+  const warm = pts.filter((p) => p.w > 0).length, cold = pts.filter((p) => p.w < 0).length;
+  const mean = (f) => pts.length ? pts.reduce((s, p) => s + f(p), 0) / pts.length : 0;
+  const liked = pts.filter((p) => p.w > 0);
+  const lb = liked.length ? Math.round(liked.reduce((s, p) => s + (+p.t.spec.bpm || 100), 0) / liked.length) : null;
+  const le = liked.length ? (liked.reduce((s, p) => s + (+p.t.spec.energy || 0.5), 0) / liked.length) : null;
+  const minors = liked.filter((p) => p.minor).length;
+  $("#tasteNote").textContent = !pts.length ? "Nothing heard here yet." :
+    `${title}: ${pts.length} tracks · ${warm} warm, ${cold} cold · ` + (liked.length ? `what you warmed to sits around ${lb} bpm, ${le < 0.4 ? "calm" : le < 0.7 ? "mid" : "high"} energy, ${minors > liked.length / 2 ? "mostly minor keys" : "mostly major keys"}.` : "react to a few tracks and the lit region appears.");
+}
+async function openTaste() {
+  const rows = await db.all(), stations = await db.all("stations"), byId = Object.fromEntries(stations.map((s) => [s.id, s]));
+  const tabs = $("#tasteTabs"); tabs.innerHTML = "";
+  const groups = [["all", "ALL", "", rows]];
+  const seen = new Map();
+  for (const t of rows) { const k = t.spec.stationId || "seed:" + t.spec.seed; if (!seen.has(k)) seen.set(k, []); seen.get(k).push(t); }
+  for (const [k, list] of seen) { const s = byId[k]; groups.push([k, ((s && s.name) || list[0].spec.seed).toUpperCase(), (s && s.seed) || list[0].spec.seed, list]); }
+  let pick = groups.find((g) => g[0] === state.stationId) || groups[0];
+  const show = () => { for (const b of tabs.children) b.classList.toggle("on", b.dataset.k === pick[0]); drawTaste(pick[3], pick[1]); };
+  for (const g of groups) {
+    const b = document.createElement("button"); b.dataset.k = g[0];
+    if (g[2]) { const c = document.createElement("canvas"); c.width = c.height = 44; drawCover(c, { seed: g[2], title: "", tags: "", bpm: 100, key: KEYS[hash32(g[2]) % 12], energy: 0.5 }); b.append(c); }
+    b.append(document.createTextNode(g[1] + " · " + g[3].length));
+    b.addEventListener("click", () => { pick = g; show(); });
+    tabs.append(b);
+  }
+  show(); $("#taste").classList.remove("hidden");
+}
+$("#tasteBtn").addEventListener("click", () => openTaste().catch((e) => toast(e.message)));
+$("#tasteClose").addEventListener("click", () => $("#taste").classList.add("hidden"));
+
+listStations().catch(() => {});
+// a shared track (?t=): open its station and render that song first; a hash (#rainy+trains) just fills the seed
+const sharedT = new URLSearchParams(location.search).get("t");
+if (sharedT) {
+  try { const t = JSON.parse(unb64u(sharedT)); if (t && t.seed && t.title) { openStation(t.seed, { name: t.station || "", first: { title: t.title, tags: t.tags, lyrics: t.lyrics || "", bpm: t.bpm, key: t.key, energy: t.energy, line: t.line || "", station: t.station || "" } }); } }
+  catch { toast("That link didn't carry a track."); }
+} else if (location.hash.length > 1 && !sharedTape) {
+  // a station link: resume that station if this browser has it (its latest track plays, free); otherwise fill the seed
+  const seed = decodeURIComponent(location.hash.slice(1)).replace(/\+/g, " ");
+  db.all("stations").then((list) => {
+    const s = list.find((x) => x.seed === seed);
+    if (s) resumeStation(s);
+    else { $("#seedIn").value = seed; $("#seedIn").dispatchEvent(new Event("input")); }
+  }).catch(() => { $("#seedIn").value = seed; $("#seedIn").dispatchEvent(new Event("input")); });
+}
+</script>
+<script src="brain.js"></script>
+</body>
+</html>
diff --git a/tools/build.sh b/tools/build.sh
new file mode 100644
index 0000000..dac481e
--- /dev/null
+++ b/tools/build.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+# gandora is a single static page; nothing to build.
+exit 0