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title: Multitrack MIDI Composer
emoji: 🎹
colorFrom: purple
colorTo: blue
sdk: gradio
sdk_version: 6.3.0
app_file: app.py
pinned: false
license: mit
short_description: AI MIDI generation with two transformer models
tags:
- midi
- music-generation
- audio
- cpu
---
# Multitrack MIDI Composer
AI-powered MIDI music generation with **two transformer models** to choose from.
## Models
### Multitrack Generator (Genre-based)
- Genre-based multi-instrument composition
- Uses `juancopi81/lmd-8bars-2048-epochs40_v4` transformer
- Builds music instrument by instrument
- Supports: ROCK, POP, JAZZ, ELECTRONIC, R&B/SOUL
### SkyTNT MIDI Model (Instrument-based)
- Uses `skytnt/midi-model` via ONNX (CPU optimized)
- Select specific instruments and drum kits
- Event-based generation with fine-grained control
- Supports all General MIDI instruments
## Features
- Pure Python audio synthesis (py-meltysynth)
- In-browser audio playback
- MIDI file export
- Piano roll visualization
- CPU-only (no GPU needed)
## Requirements
- CPU-only deployment
- ~500MB model downloads on first use
- ~6MB SoundFont file included
## Credits
- Multitrack Generator: Dr. Tristan Behrens
- SkyTNT Model: [skytnt/midi-model](https://github.com/SkyTNT/midi-model)
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