function midiFileToBlob(tracks, ticksPerQuarter) // Very lightweight MIDI writer const header = new Uint8Array([ 0x4D, 0x54, 0x68, 0x64, // MThd 0x00, 0x00, 0x00, 0x06, // header length 0x00, 0x01, // format 1 0x00, 0x01, // number of tracks 0x00, ticksPerQuarter >> 8, ticksPerQuarter & 0xFF ]); let trackData = []; for (const track of tracks) let trackChunk = []; let time = 0; for (const ev of track.events) let delta = ev.delta; let deltaBytes = []; do let byte = delta & 0x7F; delta >>= 7; if (delta > 0) byte while (delta > 0); trackChunk.push(...deltaBytes); if (ev.type === 'meta') let subtypeCode = 0; let dataBytes = []; if (ev.subtype === 'trackName') subtypeCode = 0x03; dataBytes = Array.from(new TextEncoder().encode(ev.text)); else if (ev.subtype === 'timeSignature') subtypeCode = 0x58; dataBytes = ev.data; else if (ev.subtype === 'setTempo') subtypeCode = 0x51; let tempo = ev.tempo; dataBytes = [(tempo >> 16) & 0xFF, (tempo >> 8) & 0xFF, tempo & 0xFF]; else if (ev.subtype === 'endOfTrack') subtypeCode = 0x2F; dataBytes = []; trackChunk.push(0xFF, subtypeCode, dataBytes.length, ...dataBytes); else if (ev.type === 'channel') let cmdByte = 0; if (ev.subtype === 'noteOn') cmdByte = 0x90; else if (ev.subtype === 'noteOff') cmdByte = 0x80; else if (ev.subtype === 'programChange') cmdByte = 0xC0; cmdByte let trackChunkLen = trackChunk.length; let lenBytes = [(trackChunkLen >> 24) & 0xFF, (trackChunkLen >> 16) & 0xFF, (trackChunkLen >> 8) & 0xFF, trackChunkLen & 0xFF]; let finalTrack = [0x4D, 0x54, 0x72, 0x6B, ...lenBytes, ...trackChunk]; trackData.push(...finalTrack); let full = new Uint8Array([...header, ...trackData]); return new Blob([full], type: 'audio/midi' );
.hero h1 font-size: 2.5rem; background: linear-gradient(135deg, #1e4a76, #3b82f6); -webkit-background-clip: text; background-clip: text; color: transparent; margin-bottom: 0.5rem; flute midi files free download
<div id="midiGrid" class="midi-grid"> <!-- JS will inject cards --> <div class="no-results">Loading free flute MIDI files...</div> </div> <div class="footer-note"> 🎶 All MIDI files are original arrangements or public domain. Free for personal & educational use.<br> Click ▶️ to preview (audio uses Web Audio / basic synth) – works best on modern browsers. </div> </div> For real projects you'd host
<script> // ------------------------------------------------------------------ // SAMPLE FLUTE MIDI DATASET (free, public domain / creative commons) // Each entry includes a base64 or dataURL? For real projects you'd host .mid files. // Here we embed tiny valid MIDI blobs (silence + note) as example. // In production, replace with actual file paths or generated MIDI. // For demonstration, we generate a short "C major scale" MIDI per piece. // ------------------------------------------------------------------ function generateSimpleMidiBlob(titleSeed) // Creates a minimal MIDI file with a simple flute-like phrase (notes C-D-E-F-G) // Real implementation: serve actual .mid files. This is a working MIDI generator. const ticksPerQuarter = 96; const tracks = [ events: [ delta: 0, type: 'meta', subtype: 'trackName', text: Flute: $titleSeed , delta: 0, type: 'meta', subtype: 'timeSignature', data: [4, 2, 24, 8] , delta: 0, type: 'meta', subtype: 'setTempo', tempo: 500000 , // Program change (Flute = 73) delta: 0, type: 'channel', channel: 0, subtype: 'programChange', program: 73 , // Notes: C4, D4, E4, F4, G4, each quarter note delta: 0, type: 'channel', channel: 0, subtype: 'noteOn', note: 60, velocity: 80 , delta: 96, type: 'channel', channel: 0, subtype: 'noteOff', note: 60, velocity: 0 , delta: 0, type: 'channel', channel: 0, subtype: 'noteOn', note: 62, velocity: 80 , delta: 96, type: 'channel', channel: 0, subtype: 'noteOff', note: 62, velocity: 0 , delta: 0, type: 'channel', channel: 0, subtype: 'noteOn', note: 64, velocity: 80 , delta: 96, type: 'channel', channel: 0, subtype: 'noteOff', note: 64, velocity: 0 , delta: 0, type: 'channel', channel: 0, subtype: 'noteOn', note: 65, velocity: 80 , delta: 96, type: 'channel', channel: 0, subtype: 'noteOff', note: 65, velocity: 0 , delta: 0, type: 'channel', channel: 0, subtype: 'noteOn', note: 67, velocity: 80 , delta: 96, type: 'channel', channel: 0, subtype: 'noteOff', note: 67, velocity: 0 , delta: 96, type: 'meta', subtype: 'endOfTrack' ] ]; return midiFileToBlob(tracks, ticksPerQuarter); // For demonstration, we generate a short "C
function escapeHtml(str) return str.replace(/[&<>]/g, function(m) if (m === '&') return '&'; if (m === '<') return '<'; if (m === '>') return '>'; return m; );
// Cleanup URLs after a delay to avoid memory leaks (not critical for demo) setTimeout(() => document.querySelectorAll('.midi-card audio source').forEach(src => const url = src.getAttribute('src'); if (url && url.startsWith('blob:')) URL.revokeObjectURL(url); ); , 60000);