Compangon — It reads your living score — and composes with you.

An AI copilot powered by a language model — tuned to understand music, not just words. It doesn't write over you; it works inside the score you're already writing.

Reads

Compangon reads the live score straight from your notation editor — every note, key, and voice.

Understands

A language model reads it the way a musician does — reasoning about harmony, melody, rhythm, and form, not just generating sound.

Continues

It maps out a whole piece — form, sections, and keys — then composes it into editable notation, yours to keep, change, or build on.

Musical analysis

Harmony, rhythm, and form — understood, not guessed.

In your voice

Compositions that fit the key, harmony, and shape of your score.

Inside your notation

Works with the score you're already writing.

Private by design

Runs on your machine. Your music stays yours.

You are the composer.

Compangon is a copilot, not autopilot. It suggests; you decide. Every note is yours to keep, change, or ignore.

Free during the beta

The language model runs at your own provider, on your key — you pay them directly, and your music never touches our servers.

Compose with Compangon.

For now, Compangon works only with MuseScore Studio — the free notation editor.