Player - Midi Clef Karaoke

const arrayBuffer = await file.arrayBuffer(); this.midiData = new MIDI.File(arrayBuffer); this.parseMIDIData(); this.detectClef(); this.drawStaff(); document.getElementById('lyricsDisplay').innerHTML = '🎤 Ready to play 🎤';

initEventListeners() document.getElementById('midiFileInput').addEventListener('change', (e) => this.loadMIDI(e)); document.getElementById('playBtn').addEventListener('click', () => this.play()); document.getElementById('pauseBtn').addEventListener('click', () => this.pause()); document.getElementById('stopBtn').addEventListener('click', () => this.stop()); midi clef karaoke player

this.initEventListeners(); this.initAudio(); const arrayBuffer = await file

input[type="file"] background: #533483; color: white; padding: 12px 24px; border-radius: 50px; cursor: pointer; border: none; font-size: 16px; const arrayBuffer = await file.arrayBuffer()

drawNote(x, y, width) this.ctx.beginPath(); this.ctx.fillStyle = '#2c3e66'; this.ctx.shadowBlur = 0; // Draw ellipse for note head this.ctx.ellipse(x, y, 12, 8, 0, 0, Math.PI * 2); this.ctx.fill(); this.ctx.fillStyle = '#1a1a2e'; this.ctx.fill(); // Draw stem this.ctx.beginPath(); this.ctx.moveTo(x + 10, y); this.ctx.lineTo(x + 10, y - 30); this.ctx.lineWidth = 2; this.ctx.stroke(); // Draw flag if duration is long enough if (width > 15) this.ctx.beginPath(); this.ctx.moveTo(x + 10, y - 30); this.ctx.quadraticCurveTo(x + 25, y - 25, x + 20, y - 15); this.ctx.stroke();

playMIDINotes() let currentIndex = 0; const scheduleNotes = () => if (!this.isPlaying) return; const now = (performance.now() - this.startTime) / 1000; while (currentIndex < this.notes.length && this.notes[currentIndex].startTime <= now + 0.1) const note = this.notes[currentIndex]; const midiNote = note.pitch; const velocity = note.velocity / 127; const duration = note.duration; MIDI.noteOn(0, midiNote, velocity, 0); MIDI.noteOff(0, midiNote, duration); currentIndex++; requestAnimationFrame(scheduleNotes); ; scheduleNotes();

play()