Add sourced sing-along tune fixes
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Outis
@@ -235,6 +235,170 @@ install_drum-rhythm-game() {
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|| { log_error "Clone failed — check network and git access"; return 1; }
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fi
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# Apply local runtime fixes for the upstream single-page game. The game is
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# intentionally static, so we patch index.html after clone/pull instead of
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# forking the deployment source. The shim is defensive: it fixes Web Audio
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# resume/unlock behavior, guarantees every visible drum pad has an audible
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# fallback, and replaces Christmas melody metadata with well-known public
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# domain tunes using MIDI pitches.
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log_info "Applying drum-rhythm-game Christmas/audio fixes..."
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cat > "$DRUM_DIR/html/ubuntu-post-install-fixes.js" <<'DRUM_FIXES_JS'
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(() => {
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'use strict';
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const NOTE_TO_MIDI = { C: 0, D: 2, E: 4, F: 5, G: 7, A: 9, B: 11 };
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// Sourced tune corrections. Do not add songs here from memory: every
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// melody/rhythm entry must point at a reproducible score/ABC source.
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// The first properly sourced passes cover Christmas songs from Milwaukee
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// Irish Fest School of Music and Sing Along songs from abcnotation.com.
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const CATEGORY_TUNES = {
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'jingle bells': {
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title: 'Jingle Bells', bpm: 112,
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source: 'Milwaukee Irish Fest School of Music ABC notation PDF: https://irishfestschoolofmusic.com/School-of-Music/Tunes/ifsm-polkas-xmas-jinglebells-abc.pdf',
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sourceAbc: '|: BB B2 | BB B2 | Bd GA | B4 | |cc c>c|cB B>B |[1 BA AB | A2 d2 :|[2 dd cA | G2- G2 || DB AG | D2- DD/D/ | DB AG | E2- EE/E/ | Ec BA | F2- FA/A/ | dd cA | B4 | DB AG | D2 DD/D/| DB AG | E2- EE/E/ | Ec BA | dd dd/d/ | ed cA | G2 d2|]',
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// Source metadata: M:2/4, L:1/8, K:Gmaj. Repeats/endings are expanded
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// explicitly below so the game receives deterministic note events.
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melody: 'B4 B4 B4 B4 B4 B4 B4 B4 B4 D5 G4 A4 B4 C5 C5 C5 C5 C5 B4 B4 B4 B4 A4 A4 A4 B4 A4 D5 B4 B4 B4 B4 B4 B4 B4 B4 B4 D5 G4 A4 B4 C5 C5 C5 C5 C5 B4 B4 B4 B4 D5 D5 C5 A4 G4',
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beats: '1 1 2 1 1 2 1 1 1 1 4 1 1 1.5 0.5 1 1.5 0.5 1 1 1 1 2 2 1 1 1 4 1 1 1 1 1 2 1 1 1 1 4 1 1 1.5 0.5 1 1.5 0.5 1 1 1 1 1 1 1 1 4'
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},
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'deck the halls': {
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title: 'Deck The Halls', bpm: 128,
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source: 'Milwaukee Irish Fest School of Music ABC notation PDF: https://irishfestschoolofmusic.com/School-of-Music/Tunes/ifsm-xmas-deckthehalls-abc.pdf',
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sourceAbc: '|: d3 c B2 A2 | G2 A2 B2 G2 | ABcA B3 A | G2 F2 G4 :| |A3 B c2 A2 |B3 c d2 A2 | Bc d2 ef g2 |f2 e2 d4 |d3 c B2 A2 | G2 A2 B2 G2 |ABcA B3 A | G2 F2 G4|]',
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melody: 'D5 C5 B4 A4 G4 A4 B4 G4 A4 B4 C5 A4 B4 A4 G4 F#4 G4 D5 C5 B4 A4 G4 A4 B4 G4 A4 B4 C5 A4 B4 A4 G4 F#4 G4 A4 B4 C5 A4 B4 C5 D5 A4 B4 C5 D5 E5 F#5 G5 F#5 E5 D5 D5 C5 B4 A4 G4 A4 B4 G4 A4 B4 C5 A4 B4 A4 G4 F#4 G4',
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beats: '3 1 2 2 2 2 2 2 1 1 1 1 3 1 2 2 4 3 1 2 2 2 2 2 2 1 1 1 1 3 1 2 2 4 3 1 2 2 3 1 2 2 1 1 2 1 1 2 2 2 4 3 1 2 2 2 2 2 2 1 1 1 1 3 1 2 2 4'
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},
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'we wish you a merry christmas': {
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title: 'We Wish You a Merry Christmas', bpm: 108,
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source: 'Milwaukee Irish Fest School of Music ABC notation PDF: https://irishfestschoolofmusic.com/School-of-Music/Tunes/ifsm-waltz-xmas-wewishyouamerrychristmas-abc.pdf',
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sourceAbc: 'D2 ||G2 GA GF| E2 E2 E2|A2 AB AG |F2 D2 D2| |B2 Bc BA | G2 E2 DD | E2 A2 F2 | G4 D2|| |G2 G2 G2 | F4 F2 | G2 F2 E2 | D4 A2 | |B2 A2 GG | d2 D2 DD | E2 A2 F2 | G4 D2 |]',
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melody: 'D4 G4 G4 A4 G4 F#4 E4 E4 E4 A4 A4 B4 A4 G4 F#4 D4 D4 B4 B4 C5 B4 A4 G4 E4 D4 D4 E4 A4 F#4 G4 D4 G4 G4 G4 F#4 F#4 G4 F#4 E4 D4 A4 B4 A4 G4 G4 D5 D4 D4 E4 A4 F#4 G4 D4',
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beats: '2 2 1 1 1 1 2 2 2 2 1 1 1 1 2 2 2 2 1 1 1 1 2 2 1 1 2 2 2 4 2 2 2 2 4 2 2 2 2 4 2 2 2 1 1 2 2 1 1 2 2 4 2'
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},
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'twinkle twinkle little star': {
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title: 'Twinkle, Twinkle, Little Star', bpm: 96,
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source: 'abcnotation.com tune page from the John Chambers abc collection: https://abcnotation.com/tunePage?a=trillian.mit.edu%2F~jc%2Fmusic%2Fabc%2Fmirror%2Fgulfweb.net%3A34043%2F~rlwalker%2Fabc%2Ftwinkle%2F0000',
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sourceAbc: '|"D"D D A A|"G"B B "D"A2|"G"G G "D"F F|"A"E/2E/2E/2E/2 "D"D2|"D"A A "G"G G|"D"F F "A"E2|"D"A A "G"G G|"D"F F "A"E2|"D"D D A A|"G"B B "D"A2|"G"G G "D"F F|"A"E/2E/2E/2E/2 "D"D2|]',
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// Source metadata: M:4/4, L:1/4, K:D. F notes are raised for K:D.
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melody: 'D4 D4 A4 A4 B4 B4 A4 G4 G4 F#4 F#4 E4 E4 E4 E4 D4 A4 A4 G4 G4 F#4 F#4 E4 A4 A4 G4 G4 F#4 F#4 E4 D4 D4 A4 A4 B4 B4 A4 G4 G4 F#4 F#4 E4 E4 E4 E4 D4',
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beats: '1 1 1 1 1 1 2 1 1 1 1 0.5 0.5 0.5 0.5 2 1 1 1 1 1 1 2 1 1 1 1 1 1 2 1 1 1 1 1 1 2 1 1 1 1 0.5 0.5 0.5 0.5 2'
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},
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'mary had a little lamb': {
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title: 'Mary had a little lamb', bpm: 108,
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source: 'abcnotation.com tune page from the John Chambers/Musica Viva mirror: https://abcnotation.com/tunePage?a=trillian.mit.edu%2F~jc%2Fmusic%2Fabc%2Fmirror%2Fmusicaviva.com%2Fengland%2Fmary-had-a-little-lamb-f%2F0000',
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sourceAbc: 'AGFG|AAA2|GGG2|AAA2|AGFG|AAAA|GGAG|F4|]',
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melody: 'A4 G4 F4 G4 A4 A4 A4 G4 G4 G4 A4 A4 A4 A4 G4 F4 G4 A4 A4 A4 A4 G4 G4 A4 G4 F4',
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beats: '1 1 1 1 1 1 2 1 1 2 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 4'
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},
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'row row row your boat': {
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title: 'Row, row, row your boat', bpm: 100,
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source: 'abcnotation.com tune page from the John Chambers/Musica Viva mirror: https://abcnotation.com/tunePage?a=trillian.mit.edu%2F~jc%2Fmusic%2Fabc%2Fmirror%2Fmusicaviva.com%2Fengland%2Frow-row-c%2Frow-row-c-c24%2F0000',
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sourceAbc: 'C3 C3|C2D E3|E2D E2F|G6|ccc GGG|EEE CCC|G2F E2D|C6:|',
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melody: 'C4 C4 C4 D4 E4 E4 D4 E4 F4 G4 C5 C5 C5 G4 G4 G4 E4 E4 E4 C4 C4 C4 G4 F4 E4 D4 C4',
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beats: '3 3 2 1 3 2 1 2 1 6 1 1 1 1 1 1 1 1 1 1 1 1 2 1 2 1 6'
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},
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'old macdonald': {
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title: 'Old Mac Donald', bpm: 140,
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source: 'abcnotation.com tune page from the John Chambers/Musica Viva mirror: https://abcnotation.com/tunePage?a=trillian.mit.edu%2F~jc%2Fmusic%2Fabc%2Fmirror%2Fmusicaviva.com%2Fengland%2Fold-mac-donald-f%2Fold-mac-donald-f-1%2F0000',
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sourceAbc: '"F"FFFC|"Bb"DD"F"C2|"G7"AA"C7"GG|"F"F2 z C|"F"FFFC|"Bb"DD"F"C2|"G7"AA"C7"GG|"F"F2 z2|]',
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melody: 'F4 F4 F4 C4 D4 D4 C4 A4 A4 G4 G4 F4 R C4 F4 F4 F4 C4 D4 D4 C4 A4 A4 G4 G4 F4 R',
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beats: '1 1 1 1 1 1 2 1 1 1 1 2 1 1 1 1 1 1 1 1 2 1 1 1 1 2 2'
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}
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};
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const toMidi = (note) => {
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if (!note || note === 'R') return null;
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const match = /^([A-G])([#b]?)(-?\d+)$/.exec(note);
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if (!match) return null;
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const accidental = match[2] === '#' ? 1 : match[2] === 'b' ? -1 : 0;
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return 12 * (Number(match[3]) + 1) + NOTE_TO_MIDI[match[1]] + accidental;
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};
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const freq = (midi) => 440 * (2 ** ((midi - 69) / 12));
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const tuneNotes = (tune) => {
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const notes = tune.melody.split(/\s+/);
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const beats = tune.beats.split(/\s+/);
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return notes.map((note, idx) => {
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const midi = toMidi(note);
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return { note, midi, frequency: midi == null ? 0 : freq(midi), beat: Number(beats[idx] || 1) };
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});
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};
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const findAudioContext = () => {
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const AudioCtor = window.AudioContext || window.webkitAudioContext;
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return AudioCtor ? safeObjectValues(window).find((value) => value instanceof AudioCtor) : null;
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};
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const unlock = () => {
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const AudioCtor = window.AudioContext || window.webkitAudioContext;
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window.__drumRhythmAudioContext = window.__drumRhythmAudioContext || (AudioCtor ? new AudioCtor() : null);
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[window.__drumRhythmAudioContext, findAudioContext()].filter(Boolean).forEach((ctx) => ctx.state === 'suspended' && ctx.resume());
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};
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['pointerdown', 'keydown', 'gamepadconnected', 'touchstart', 'click'].forEach((eventName) => window.addEventListener(eventName, unlock, { passive: true }));
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const padSound = (index = 0) => {
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unlock();
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const ctx = window.__drumRhythmAudioContext;
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if (!ctx) return;
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const now = ctx.currentTime;
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const osc = ctx.createOscillator();
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const gain = ctx.createGain();
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osc.type = ['sine', 'triangle', 'square', 'sawtooth'][index % 4];
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osc.frequency.setValueAtTime([110, 146.83, 196, 246.94, 329.63, 392][index % 6], now);
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gain.gain.setValueAtTime(0.24, now);
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gain.gain.exponentialRampToValueAtTime(0.001, now + 0.13);
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osc.connect(gain).connect(ctx.destination);
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osc.start(now);
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osc.stop(now + 0.14);
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};
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window.ubuntuPostInstallDrumPadSound = padSound;
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document.addEventListener('pointerdown', (event) => {
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const pad = event.target.closest('[data-pad], .pad, .drum-pad, button');
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if (!pad || /play|start|stop|pause|song/i.test(pad.textContent || '')) return;
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padSound([...document.querySelectorAll('[data-pad], .pad, .drum-pad, button')].indexOf(pad));
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}, true);
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const normalize = (name) => String(name || '').toLowerCase().replace(/[^a-z0-9]+/g, ' ').trim();
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const safeObjectValues = (object) => Object.keys(object).flatMap((key) => {
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try {
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return [object[key]];
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} catch (_error) {
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return [];
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}
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});
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const safeWindowObjects = () => safeObjectValues(window).filter((value) => value && typeof value === 'object');
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const patchSongs = () => {
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for (const root of [window, ...safeWindowObjects()]) {
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for (const key of Object.keys(root)) {
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let list;
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try {
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list = root[key];
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} catch (_error) {
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continue;
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}
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if (!Array.isArray(list)) continue;
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for (const song of list) {
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const title = normalize(song && (song.title || song.name));
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const tuneKey = Object.keys(CATEGORY_TUNES).find((candidate) => title.includes(candidate));
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if (!tuneKey) continue;
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const tune = CATEGORY_TUNES[tuneKey];
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song.title = song.title || tune.title;
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song.name = song.name || tune.title;
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song.bpm = tune.bpm;
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song.notes = tuneNotes(tune);
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song.melody = tune.melody;
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song.beats = tune.beats;
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}
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}
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}
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};
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window.addEventListener('load', () => { unlock(); patchSongs(); setTimeout(patchSongs, 250); });
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setInterval(patchSongs, 2000);
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})();
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DRUM_FIXES_JS
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if [ -f "$DRUM_DIR/html/index.html" ] && ! grep -q "ubuntu-post-install-fixes.js" "$DRUM_DIR/html/index.html"; then
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sed -i 's#</body># <script src="ubuntu-post-install-fixes.js"></script>\n</body>#' "$DRUM_DIR/html/index.html"
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fi
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chown -R "$ACTUAL_USER:$ACTUAL_USER" "$DRUM_DIR/html"
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# Mirrors configure_caddy_for_service's own mode resolution (lib/common.sh):
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