diff --git a/bundled-addons/pithos/ui/app.css b/bundled-addons/pithos/ui/app.css
index fdb67e65..75fd5b95 100644
--- a/bundled-addons/pithos/ui/app.css
+++ b/bundled-addons/pithos/ui/app.css
@@ -324,3 +324,30 @@ tr.clickable:focus-visible { outline: none; }
 .menu button { appearance: none; border: none; background: none; color: var(--text); font: inherit; text-align: left; padding: 7px 10px; border-radius: 6px; cursor: pointer; }
 .menu button:hover, .menu button:focus-visible { background: var(--surface-2); outline: none; }
 .menu button.danger { color: var(--danger); }
+
+/* Music player, docked at the bottom; stays while you browse */
+.player { position: fixed; left: 0; right: 0; bottom: 0; z-index: 15; display: flex; align-items: center; gap: 12px;
+  padding: 8px 14px; background: var(--surface); border-top: 1px solid var(--border); box-shadow: 0 -4px 16px rgb(0 0 0 / .12); }
+@media (min-width: 761px) { .player { left: 220px; } }
+body.has-player main { padding-bottom: 96px; }
+body.has-player .toasts { bottom: 84px; }
+.pl-controls { display: flex; align-items: center; gap: 2px; flex: none; }
+.pl-btn { appearance: none; border: none; background: none; color: var(--text); font: inherit; font-size: 16px; width: 32px; height: 32px;
+  border-radius: 50%; cursor: pointer; display: grid; place-items: center; }
+.pl-btn:hover:not(:disabled) { background: var(--surface-2); }
+.pl-btn:disabled { opacity: .35; cursor: default; }
+.pl-main { width: 38px; height: 38px; background: var(--accent); color: var(--accent-ink); font-size: 15px; }
+.pl-main:hover:not(:disabled) { background: var(--accent); filter: brightness(1.08); }
+.pl-info { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 2px; }
+.pl-head { display: flex; align-items: baseline; gap: 8px; min-width: 0; }
+.pl-title { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0; }
+.pl-where { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1 1 0; min-width: 0; }
+.pl-seek { display: flex; align-items: center; gap: 8px; }
+.pl-seek input { flex: 1; min-width: 0; accent-color: var(--accent); margin: 0; }
+.pl-time { font-size: 11.5px; color: var(--muted); font-variant-numeric: tabular-nums; min-width: 2.6em; text-align: center; }
+@media (max-width: 420px) {
+  .player { gap: 6px; padding: 6px 8px; }
+  .pl-where { display: none; }
+  .pl-btn { width: 28px; height: 28px; font-size: 14px; }
+  .pl-main { width: 34px; height: 34px; }
+}
diff --git a/bundled-addons/pithos/ui/app.js b/bundled-addons/pithos/ui/app.js
index 3d427bbd..8a03d863 100644
--- a/bundled-addons/pithos/ui/app.js
+++ b/bundled-addons/pithos/ui/app.js
@@ -1322,7 +1322,7 @@ function objectBrowser(head, body, user, bucket, prefix, userSel) {
     const folderName = (f) => f.slice(prefix.length).replace(/\/$/, '');
     const fileName = (o) => o.key.slice(prefix.length);
     const folderMenu = (f) => itemMenu([['Open', () => go(f)], ['Delete', () => deleteFolder(f), 'danger']]);
-    const fileMenu = (o) => itemMenu([['Open', () => openViewer(o)], ['Download', () => downloadObject(o.key)], ['Share link…', () => share(o.key)], ['Delete', () => deleteObject(o.key), 'danger']]);
+    const fileMenu = (o) => itemMenu([[fileKind(o.key) === 'audio' ? 'Play' : 'Open', () => openViewer(o)], ['Download', () => downloadObject(o.key)], ['Share link…', () => share(o.key)], ['Delete', () => deleteObject(o.key), 'danger']]);
     const more = last?.truncated && h('div', { class: 'row', style: 'justify-content:center;margin-top:12px' }, h('button', { class: 'btn', onclick: () => load(last.nextToken) }, 'Load more'));
     const stop = (e) => e.stopPropagation();
 
@@ -1452,6 +1452,7 @@ function objectBrowser(head, body, user, bucket, prefix, userSel) {
   async function openViewer(o) {
     const name = o.key.slice(prefix.length);
     const kind = fileKind(o.key);
+    if (kind === 'audio') return playFolder(o);
     const path = `${base}/object?key=${encodeURIComponent(o.key)}`;
     const src = async () => (bridge ? (await bridge.invoke('view-url', { path })).url : `${path}&inline=1`);
     let content;
@@ -1468,6 +1469,17 @@ function objectBrowser(head, body, user, bucket, prefix, userSel) {
       [{ label: 'Share', value: () => { share(o.key); return false; } }, { label: 'Download', value: () => { downloadObject(o.key); return false; } }, { label: 'Close', kind: 'primary', submit: true, result: true }]);
   }
 
+  // Music plays in the docked player, on through this folder's other tracks.
+  function playFolder(o) {
+    const where = `${bucket}/${prefix}`.replace(/\/$/, '');
+    const tracks = pages.flatMap((p) => p.objects).filter((x) => fileKind(x.key) === 'audio').map((x) => {
+      const path = `${base}/object?key=${encodeURIComponent(x.key)}`;
+      return { key: x.key, name: x.key.slice(prefix.length), where,
+        src: async () => (bridge ? (await bridge.invoke('view-url', { path })).url : `${path}&inline=1`) };
+    });
+    player().play(tracks, Math.max(0, tracks.findIndex((t) => t.key === o.key)));
+  }
+
   async function deleteObject(key) {
     if (!(await confirmModal('Delete object?', key))) return;
     try { await api('DELETE', `${base}/object?key=${encodeURIComponent(key)}`); toast('Deleted'); load(); } catch (e) { fail(e); }
@@ -1503,6 +1515,102 @@ function objectBrowser(head, body, user, bucket, prefix, userSel) {
   load();
 }
 
+// ---------------------------------------------------------------- music player
+
+// A player docked at the bottom of Pithos: it lives outside the page, so it
+// keeps playing while you browse other folders, drives or pages, and plays
+// on through the folder it was started from.
+let musicPlayer = null;
+function player() {
+  if (musicPlayer) return musicPlayer;
+  const audio = new Audio();
+  audio.preload = 'metadata';
+  let queue = [];
+  let at = -1;
+  let seeking = false;
+  let retried = false;
+  const mmss = (t) => (isFinite(t) ? `${Math.floor(t / 60)}:${String(Math.floor(t % 60)).padStart(2, '0')}` : '0:00');
+  const title = h('div', { class: 'pl-title' });
+  const where = h('div', { class: 'pl-where small muted' });
+  const cur = h('span', { class: 'pl-time' }, '0:00');
+  const dur = h('span', { class: 'pl-time' }, '0:00');
+  const seek = h('input', { type: 'range', min: '0', max: '0', step: '1', value: '0', 'aria-label': 'Position',
+    oninput: () => { seeking = true; cur.textContent = mmss(+seek.value); },
+    onchange: () => { audio.currentTime = +seek.value; seeking = false; } });
+  const playBtn = h('button', { type: 'button', class: 'pl-btn pl-main', 'aria-label': 'Play', onclick: () => (audio.paused ? audio.play().catch(() => {}) : audio.pause()) }, '▶');
+  const prevBtn = h('button', { type: 'button', class: 'pl-btn', 'aria-label': 'Previous', title: 'Previous', onclick: () => prev() }, '⏮');
+  const nextBtn = h('button', { type: 'button', class: 'pl-btn', 'aria-label': 'Next', title: 'Next', onclick: () => next() }, '⏭');
+  const closeBtn = h('button', { type: 'button', class: 'pl-btn', 'aria-label': 'Stop and close the player', title: 'Close', onclick: () => close() }, '✕');
+  const el = h('div', { class: 'player', role: 'region', 'aria-label': 'Music player', hidden: true },
+    h('div', { class: 'pl-controls' }, prevBtn, playBtn, nextBtn),
+    h('div', { class: 'pl-info' }, h('div', { class: 'pl-head' }, title, where), h('div', { class: 'pl-seek' }, cur, seek, dur)),
+    closeBtn);
+  document.body.append(el);
+
+  const showPlaying = () => { const p = !audio.paused; playBtn.textContent = p ? '⏸' : '▶'; playBtn.setAttribute('aria-label', p ? 'Pause' : 'Play'); if (navigator.mediaSession) navigator.mediaSession.playbackState = p ? 'playing' : 'paused'; };
+  audio.addEventListener('play', showPlaying);
+  audio.addEventListener('pause', showPlaying);
+  audio.addEventListener('playing', () => { retried = false; });
+  audio.addEventListener('loadedmetadata', () => { seek.max = String(Math.floor(audio.duration) || 0); dur.textContent = mmss(audio.duration); });
+  audio.addEventListener('timeupdate', () => { if (!seeking) { seek.value = String(Math.floor(audio.currentTime)); cur.textContent = mmss(audio.currentTime); } });
+  audio.addEventListener('ended', () => { if (at < queue.length - 1) next(); });
+  // Theseus view links last 10 minutes: when one runs out mid-track, fetch a
+  // fresh link and carry on from the same spot.
+  audio.addEventListener('error', () => {
+    if (!queue[at] || retried) return toast(`Cannot play ${queue[at]?.name || 'this file'}`, 'error');
+    retried = true;
+    load(at, audio.currentTime, true);
+  });
+
+  async function load(i, from = 0, play = true) {
+    at = i;
+    const t = queue[i];
+    title.textContent = t.name;
+    title.title = t.name;
+    where.textContent = t.where;
+    prevBtn.disabled = i <= 0;
+    nextBtn.disabled = i >= queue.length - 1;
+    let src;
+    try { src = await t.src(); } catch (e) { return fail(e); }
+    if (at !== i) return; // another track was chosen meanwhile
+    audio.src = src;
+    if (from) audio.addEventListener('loadedmetadata', () => { audio.currentTime = from; }, { once: true });
+    if (play) audio.play().catch(() => {});
+    if (navigator.mediaSession && window.MediaMetadata) navigator.mediaSession.metadata = new MediaMetadata({ title: t.name.replace(/\.[^.]+$/, ''), album: t.where, artist: 'Pithos' });
+  }
+  const next = () => { if (at < queue.length - 1) load(at + 1); };
+  const prev = () => { if (audio.currentTime > 3 || at <= 0) audio.currentTime = 0; else load(at - 1); };
+  function close() {
+    audio.pause();
+    audio.removeAttribute('src');
+    audio.load();
+    queue = []; at = -1;
+    el.hidden = true;
+    document.body.classList.remove('has-player');
+  }
+  if (navigator.mediaSession) {
+    const ms = navigator.mediaSession;
+    try {
+      ms.setActionHandler('play', () => audio.play().catch(() => {}));
+      ms.setActionHandler('pause', () => audio.pause());
+      ms.setActionHandler('previoustrack', prev);
+      ms.setActionHandler('nexttrack', next);
+      ms.setActionHandler('seekto', (d) => { audio.currentTime = d.seekTime; });
+    } catch {}
+  }
+  musicPlayer = {
+    // tracks: [{ key, name, where, src: async () => url }]
+    play(tracks, index) {
+      queue = tracks;
+      el.hidden = false;
+      document.body.classList.add('has-player');
+      load(index);
+    },
+    get current() { return queue[at]?.key || null; },
+  };
+  return musicPlayer;
+}
+
 // ---------------------------------------------------------------- settings
 
 function settings(main) {