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<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="description" content="MuScriptor: An Open Model for Multi-Instrument Music Transcription">
<meta name="author" content="">
<title>MuScriptor: An Open Model for Multi-Instrument Music Transcription</title>
<!-- Bootstrap core CSS -->
<link href="./page_files/bootstrap.min.css" rel="stylesheet">
<!-- Custom styles for this template -->
<link href="./page_files/scrolling-nav.css" rel="stylesheet">
<style>
body {
font-family: 'Segoe UI', sans-serif;
}
header {
padding: 3rem 0 2rem;
}
header h1 {
font-size: 2rem;
font-weight: 700;
line-height: 1.3;
}
.row-id {
width: 180px; /* Forces the column to be wide enough for titles */
min-width: 180px;
font-weight: 600;
font-size: 0.9rem;
color: #333;
text-align: left !important;
padding: 15px !important;
word-break: normal; /* REMOVED break-all to stop the vertical text */
}
header .authors {
margin-top: 0.75rem;
font-size: 1rem;
color: #ccc;
}
h2 {
text-decoration: underline;
}
table audio {
/* Increase this value! */
width: 240px;
height: 40px; /* Standard height for the browser player */
display: block;
margin: 5px auto;
}
/* Ensure the table columns can expand to fit the wider players */
.table {
table-layout: auto;
min-width: 1100px; /* Prevents the table from collapsing too much */
}
.table td {
vertical-align: middle !important;
}
</style>
</head>
<body id="page-top">
<header class="bg-dark text-white">
<div class="container text-center">
<h1>MuScriptor: An Open Model for Multi-Instrument Music Transcription</h1>
<!-- <p class="authors">[Author names here] — [Institution] — [Year]</p> -->
<p class="authors">Under Review, we recommend using Chrome</p>
</div>
</header>
<!-- Abstract Section -->
<section id="abstract" class="py-5">
<div class="container">
<h2>Abstract</h2>
<p>
Existing methods for automatic music transcription are often limited to single-instrument recordings or fail on complex, real music mixes. Although previous work utilizes synthetic training data, the resulting models generalize poorly, leading to largely unusable transcription output in realistic, multi-instrument settings.
In this work, we analyze the effectiveness of synthetic data for pre-training while combining it with fine-tuning on real music audio and post-training using reinforcement learning. We further introduce conditioning on instrument presence to customize transcriptions. Finally, we release MuScriptor, an open-weight multi-instrument music transcription model that works on real-world music recordings from across a diverse range of musical genres.
</p>
</div>
</section>
<!-- Audio Samples Section -->
<section id="samples" class="py-5 bg-light">
<div class="container">
<h2>Audio Samples</h2>
<p>
We compare transcription between YourMT3+ and our best MuScriptor (1.3B) model. All the transcriptions are synthesized using the MuseScore_General.sf2 soundfont. For non classical music songs, the vocals are synthesized with the Clarinet instrument.
<ul>
<li><strong>Original:</strong> The input audio mixture.</li>
<li><strong>YourMT3+:</strong> Baseline: Transcription from the YourMT3+ model.</li>
<li><strong>MuScriptor (1.3B):</strong> Transcription with our best MuScriptor (1.3B) model after the 3 training phases (MIDI pretraining, training on real data and RL on high quality data).</li>
<li><strong>Original / MuScriptor Alignment:</strong> Stereo file with original on the left channel and MuScriptor transcription on the right channel.</li>
</ul>
</p>
<div class="table-responsive">
<table class="table table-bordered text-center align-middle">
<thead class="thead-dark">
<tr>
<th>ID</th>
<th>Original</th>
<th>YourMT3+</th>
<th>MuScriptor (1.3B) </th>
<th>Original (L) / MuScriptor (R)</th>
</tr>
</thead>
<tbody>
<tr>
<td class="row-id">Oasis - Don't Look Back In Anger</td>
<td><audio controls preload="metadata" src="src/original/15472.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/ymt3/15472.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/muscriptor_midi_real_rl/15472.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/muscriptor_midi_real_rl_left_right/15472.mp3"></audio></td>
</tr>
<!-- <tr>
<td class="row-id">10139</td>
<td><audio controls preload="metadata" src="src/original/10139.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/ymt3/10139.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/muscriptor_midi_real_rl/10139.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/muscriptor_midi_real_rl_left_right/10139.mp3"></audio></td>
</tr> -->
<tr>
<td class="row-id">Metallica - Fade to Black</td>
<td><audio controls preload="metadata" src="src/original/20.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/ymt3/20.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/muscriptor_midi_real_rl/20.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/muscriptor_midi_real_rl_left_right/20.mp3"></audio></td>
</tr>
<tr>
<td class="row-id">Radiohead - Karma Police</td>
<td><audio controls preload="metadata" src="src/original/217.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/ymt3/217.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/muscriptor_midi_real_rl/217.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/muscriptor_midi_real_rl_left_right/217.mp3"></audio></td>
</tr>
<tr>
<td class="row-id">Ariettes oubliees</td>
<td><audio controls preload="metadata" src="src/original/0CEBC4A2C1B4d1cd.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/ymt3/0CEBC4A2C1B4d1cd.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/muscriptor_midi_real_rl/0CEBC4A2C1B4d1cd.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/muscriptor_midi_real_rl_left_right/0CEBC4A2C1B4d1cd.mp3"></audio></td>
</tr>
<tr>
<td class="row-id">Red Hot Chili Peppers - Snow</td>
<td><audio controls preload="metadata" src="src/original/249.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/ymt3/249.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/muscriptor_midi_real_rl/249.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/muscriptor_midi_real_rl_left_right/249.mp3"></audio></td>
</tr>
<tr>
<td class="row-id">Nirvana - About a Girl</td>
<td><audio controls preload="metadata" src="src/original/29.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/ymt3/29.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/muscriptor_midi_real_rl/29.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/muscriptor_midi_real_rl_left_right/29.mp3"></audio></td>
</tr>
<!-- <tr>
<td class="row-id">2DFe6bC4b9caBA6f</td>
<td><audio controls preload="metadata" src="src/original/2DFe6bC4b9caBA6f.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/ymt3/2DFe6bC4b9caBA6f.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/muscriptor_midi_real_rl/2DFe6bC4b9caBA6f.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/muscriptor_midi_real_rl_left_right/2DFe6bC4b9caBA6f.mp3"></audio></td>
</tr> -->
<tr>
<td class="row-id">The Stars and Stripes Forever - US Military Academy Band</td>
<td><audio controls preload="metadata" src="src/original/79FeacDFAD6B681e.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/ymt3/79FeacDFAD6B681e.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/muscriptor_midi_real_rl/79FeacDFAD6B681e.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/muscriptor_midi_real_rl_left_right/79FeacDFAD6B681e.mp3"></audio></td>
</tr>
<tr>
<td class="row-id">Red Hot Chili Peppers - Scar Tissue</td>
<td><audio controls preload="metadata" src="src/original/49.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/ymt3/49.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/muscriptor_midi_real_rl/49.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/muscriptor_midi_real_rl_left_right/49.mp3"></audio></td>
</tr>
<!-- <tr>
<td class="row-id">77eB0320Eeba6DBe</td>
<td><audio controls preload="metadata" src="src/original/77eB0320Eeba6DBe.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/ymt3/77eB0320Eeba6DBe.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/muscriptor_midi_real_rl/77eB0320Eeba6DBe.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/muscriptor_midi_real_rl_left_right/77eB0320Eeba6DBe.mp3"></audio></td>
</tr> -->
<tr>
<td class="row-id">Ryuichi Sakamoto - hwit</td>
<td><audio controls preload="metadata" src="src/original/Aa6D69560e032A94.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/ymt3/Aa6D69560e032A94.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/muscriptor_midi_real_rl/Aa6D69560e032A94.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/muscriptor_midi_real_rl_left_right/Aa6D69560e032A94.mp3"></audio></td>
</tr>
<tr>
<td class="row-id">Messe solennelle de Sainte Secile: Gloria</td>
<td><audio controls preload="metadata" src="src/original/FbE483B38ec6dBb5.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/ymt3/FbE483B38ec6dBb5.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/muscriptor_midi_real_rl/FbE483B38ec6dBb5.mp3"></audio></td>
<td><audio controls preload="metadata" src="src/muscriptor_midi_real_rl_left_right/FbE483B38ec6dBb5.mp3"></audio></td>
</tr>
</tbody>
</table>
</div>
</div>
</section>
<!-- Footer -->
<footer class="py-4 bg-dark">
<div class="container">
<p class="m-0 text-center text-white" style="font-size: 0.85rem;"></p>
</div>
</footer>
<!-- Bootstrap core JavaScript -->
<script src="./page_files/jquery.min.js"></script>
<script src="./page_files/bootstrap.bundle.min.js"></script>
<script src="./page_files/jquery.easing.min.js"></script>
<script src="./page_files/scrolling-nav.js"></script>
<script>
document.addEventListener('DOMContentLoaded', function () {
var elems = document.body.getElementsByTagName("audio");
for (var elem of elems) {
elem.addEventListener("play", function () {
for (var other of elems) {
if (other !== this) other.pause();
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});
}
});
</script>
<script>
document.addEventListener('DOMContentLoaded', function () {
const allAudios = document.querySelectorAll('audio');
const rows = document.querySelectorAll('tbody tr');
rows.forEach(row => {
const rowAudios = row.querySelectorAll('audio');
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</body></html>