MuScriptor

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Score7.3

Rank#3 of 29

PriceFree

Free planYes

Runs onAPI, Linux, macOS, Self-hosted, Web, Windows

Summary

MuScriptor transcribes recordings into MIDI and sheet music. Its hosted service offers downloadable MIDI files, sheet-music PDFs, and guitar-tab PDFs, and the web demo accepts MP3, WAV, FLAC, OGG, M4A, AIFF, and Opus audio. It can transcribe voice, piano, guitars, bass, strings, brass, woodwinds, drums, and other instruments; users can specify expected instruments to help improve transcription accuracy. Guitar and bass transcriptions include tablature alongside standard notation, but the system does not produce chord symbols. MusicXML output can be edited in MuseScore, Sibelius, or Guitar Pro. The web interface can be self-hosted, with transcription also available through a command-line interface and Python API. Local use requires Hugging Face authentication and acceptance of the model's CC BY-NC 4.0 license. Hosted audio is processed on the server and not retained afterwards, while local use keeps audio on the user's machine. The service says results are stronger on acoustic and guitar music than on electronic music, and that transcription is not perfect.

Who it is for

MuScriptor suits musicians who want to turn recordings into MIDI, sheet music, or guitar and bass tablature. It may also suit users who prefer local processing, provided they meet the authentication and license requirements.

What is good

Hosted service offers MIDI and PDF downloads
Accepts seven listed audio formats
Users can specify expected instruments
Local use keeps audio on the user's machine
Available through a CLI and Python API

What to know first

Does not write chord symbols
Results are less effective on electronic music
Local use requires Hugging Face authentication and license acceptance

Verdict

MuScriptor offers several transcription outputs and can be used through a hosted demo or local setup. Its stated accuracy limitation and local-use requirements are worth considering before choosing it.

MuScriptor plans and pricing

All plans

Free Free free hosted demo · MIT-licensed code · model weights CC BY-NC 4.0 non-commercial muscriptor.kyutai.org · 30 Sept 2026

Compared on AI music transcription software

Free plan: Yesmuscriptor.kyutai.org
Polyphonic transcription: Yesmuscriptor.kyutai.org

Facts

Purpose: MuScriptor transcribes recordings into MIDI and sheet music.github.com · 30 Sept 2026
Outputs: The hosted service provides MIDI, sheet-music PDFs and guitar-tab PDFs for download.muscriptor.kyutai.org · 30 Sept 2026
Audio formats: The web demo accepts MP3, WAV, FLAC, OGG, M4A, AIFF and Opus files.muscriptor.kyutai.org · 30 Sept 2026
Instruments: It can transcribe voice, piano, guitars, bass, strings, brass, woodwinds, drums and other instruments.muscriptor.kyutai.org · 30 Sept 2026
Instrument targeting: Users can specify expected instruments to improve transcription accuracy.muscriptor.kyutai.org · 30 Sept 2026
Tabs and notation: Fretted instruments such as guitar and bass produce tablature alongside standard notation, and the system does not write chord symbols.muscriptor.kyutai.org · 30 Sept 2026
Integrations: MusicXML output can be edited in MuseScore, Sibelius or Guitar Pro.muscriptor.kyutai.org · 30 Sept 2026
Local deployment: The same web UI can be self-hosted with `uvx muscriptor serve`, and transcription is available through a CLI and Python API.github.com · 30 Sept 2026
Platforms: The repository documents Linux, macOS with Apple Silicon, Windows GPU use and Intel macOS support.github.com · 30 Sept 2026
Model variants: MuScriptor publishes small, medium and large variants with 103M, 307M and 1.4B parameters respectively.github.com · 30 Sept 2026
Local requirements: Local use requires Hugging Face authentication and acceptance of the CC BY-NC 4.0 model license.github.com · 30 Sept 2026
Security and privacy: Uploaded audio is transcribed on the server and not kept afterwards; running locally keeps audio on the user's machine.muscriptor.kyutai.org · 30 Sept 2026
Accuracy limitation: The service says it works better on acoustic and guitar music than electronic music and is not perfect.muscriptor.kyutai.org · 30 Sept 2026
Support: Bug reports and feedback can be sent to [email protected] or submitted as GitHub issues.muscriptor.kyutai.org · 30 Sept 2026
Training data: The model was trained on 170,000 songs spanning classical music to heavy metal.muscriptor.kyutai.org · 30 Sept 2026