Rule-based generate

Pick melody, chords or rhythm, then a style and density. Edit the result.

Free · No sign-up · No watermark

🔒 Files never leave your device — processing happens in your browser.

Notes, chords, rhythm and lyrics stay in this browser and in the JSON you download. Audio files are not saved.

How to use

  1. Choose the part, key, BPM, bars, style and density.
  2. Press Generate.
  3. Change notes or hits, then save them into a section.

Rule-based generate

Styles are pop, dance and ballad. Patterns such as I–V–vi–IV are fixed templates plus a seeded rhythm. There is no model and no account.

The same settings can vary slightly because the seed changes each time you press Generate. Density only adds or removes hits and notes.

Frequently asked questions

Does this use AI?

No. Notes, chords and drums come from what you edit or from fixed rules and templates.

Does audio get uploaded or saved?

No. Playback is generated in your browser. Project JSON may stay in localStorage. Raw audio is not stored.

Is the output copyright-free?

No. A procedural sketch is not a legal promise. Use it as a draft.

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