AEmotionStudio/muscriptor-models

MuScriptor — multi-instrument music transcription (MAESTRO mirror)

Mirror of MuScriptor (Kyutai × Mirelo), laid out for MAESTRO's download-on-demand loader:

path	upstream	notes
small/	MuScriptor/muscriptor-small	103M params, CPU-capable
medium/	MuScriptor/muscriptor-medium	307M params, default
large/	MuScriptor/muscriptor-large	1.4B params, most accurate
shared/beat_this_final0.ckpt	CPJKU/beat_this final0	tempo / downbeat tracker (MIT)
shared/MuseScore_General.sf2	MuScriptor/assets	soundfont for the A/B audition (MIT)

Weights are byte-identical to upstream (sha256-verified at mirror time). Inference code: muscriptor/muscriptor (MIT).

License

Model weights: CC BY-NC 4.0 (non-commercial), as published by Kyutai × Mirelo. This mirror adds no restrictions. beat_this and the soundfont are MIT.

Citation

@misc{rouard2026muscriptoropenmodelmultiinstrument,
  title={MuScriptor: An Open Model for Multi-Instrument Music Transcription},
  author={Simon Rouard and Michael Krause and Axel Roebel and Carl-Johann Simon-Gabriel and Alexandre Défossez},
  year={2026}, eprint={2607.08168}, archivePrefix={arXiv}, primaryClass={cs.SD},
  url={https://arxiv.org/abs/2607.08168},
}