Tonefold
An open-source AI music composition app that turns natural-language song descriptions into editable chord, melody, bass, and drum tracks. According to the developers, you can edit note by note in the piano roll and export MIDI, stereo WAV, or stem WAV files—free on Mac and Windows.
Updated: 2026-10-27
What is Tonefold?
Tonefold is a GPL-3.0 open-source AI composition tool that turns "describing a song" into an editable multitrack work. It generates chords, melody, bass, drums, and other tracks into a piano roll, where they can be adjusted note by note and exported directly to a DAW for further production. The official team also emphasizes that the goal of such tools is to reduce repetitive work and leave people time for more critical judgment. The official team emphasizes that the goal of such tools is to reduce repetitive work and leave people time for more critical judgment. When incorporating it into a formal workflow, it is recommended to first check the feature and pricing information on the official page before deciding how to integrate it.
Who is it for?
- Independent musicians who want to quickly get an editable song skeleton.
- Music production enthusiasts who want local offline processing and want to avoid cloud uploads.
- Studios using FL Studio or other DAWs that need MIDI stems.
- Developers who want to integrate Claude Code or chosen models via Ollama.
- Individual users who want to first validate results with the free quota before deciding whether to pay.
Key features
6Composition Chat
The official description says you can describe melodies, moods, or revision requests in natural language, and the AI writes chords, melodies, bass, and drums.
Piano Roll Editing
Draw, move, and resize notes, click piano keys to preview, and lock or mute any track.
Multitrack and Song Structure
Eleven track types, including chords, melody, bass, drums, pad, and arpeggios, are organized into sections from intro to outro.
Instant Performance Feel
The official team says repeats are not copies; the style comes with its own groove, sustain, and glide, and the built-in General MIDI synthesizer plays directly.
Export and Integration
Supports exporting MIDI, stereo WAV mixes, or per-layer WAV stems, plus optional DAW plug-ins and a CLI.
Workflow Continuity
The official introduction emphasizes that output can enter subsequent collaboration or release workflows, reducing manual transfer.
Things to know
Usage Tips
- After downloading, first view the generation plan in Producer mode, and confirm the key, rhythm, and song structure before approving.
- Use section locking for tracks you are satisfied with, and let the AI continue modifying only the rest.
- Export MIDI stems before going into the DAW for sound design and mixing, keeping the creative workflow reversible.
- The chat model requires a local Claude Code login or Ollama on the local network; generation and export themselves are offline.
- Save key settings and prompts before use for later reuse or rollback.
Traffic & popularity
Data month Sep 2026
Tonefold receives about 27.3K visits per month.
Monthly visits
3 monthsEstimated from third-party traffic data.
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