Midi To Thirty Dollar — Website
// File loader function loadMidiFile(file) if (!file
@media (max-width: 700px) .container padding: 20px; .action-bar justify-content: center; </style> </head> <body> <div class="container"> <h1>🎹 MIDI to Sheet Music</h1> <div class="sub">Upload any .mid file → instant piano roll & standard notation → save as PDF (under $30 stack)</div> midi to thirty dollar website
<div class="upload-area" id="dropZone"> <div class="upload-icon">📂 🎵</div> <p style="margin: 8px 0; font-weight: 500;">Drag & drop or click to upload MIDI</p> <p style="font-size: 0.8rem; color:#4b6a8b;">Supports Format 0/1, polyphonic up to ~4 tracks simplified</p> <button class="btn btn-primary" id="selectFileBtn" style="margin-top: 12px;">Choose .mid file</button> <input type="file" id="fileInput" accept=".mid,.midi"> </div> // File loader function loadMidiFile(file) if (
// VexFlow rendering async function renderNotation(eventsData, ticksPerQuarter, canvasElem) if (!eventsData.events.length) const ctx = canvasElem.getContext('2d'); ctx.clearRect(0, 0, canvasElem.width, canvasElem.height); ctx.fillStyle = "#6c7a89"; ctx.font = "14px Inter"; ctx.fillText("No melodic content to render (empty track)", 20, 70); return; const VF = VexFlow; const width = canvasElem.width; const ctx = canvasElem.getContext('2d'); ctx.clearRect(0, 0, width, 200); // Create a stave with 4 measures const stave = new VF.Stave(10, 20, width - 40); stave.addClef("treble").addTimeSignature("4/4"); stave.setContext(ctx).draw(); // Build voice from events let vexNotes = []; for (let ev of eventsData.events.slice(0, 32)) // limit notes per line vexNotes.push(new VF.StaveNote( keys: ev.keys, duration: ev.duration )); if (vexNotes.length === 0) return; const voice = new VF.Voice( num_beats: 4, beat_value: 4 ); voice.addTickables(vexNotes); new VF.Formatter().joinVoices([voice]).formatToStave([voice], stave.getWidth() - 20); voice.draw(ctx, stave); .action-bar justify-content: center
.btn-secondary background: #334e68; .btn-secondary:hover background: #1f3a4f;
#notationCanvas background: #fffdf8; box-shadow: 0 2px 8px rgba(0,0,0,0.03); width: 100%; height: auto; border-radius: 16px;