Open Source Orchestrator chord charts & songbooks · made in the open · blessed by the artist

A tool of the Open Source Orchestra. Machines sketch the first draft; musicians speak the truth. Everything here is free, open source (CC0), and runs entirely in your browser — no accounts, no uploads, no tracking. Add your own songbook to the community catalog on GitHub. 🤙

① Song in

Bring a song here any way you like.

② Review & bless

The heart of the tool: click any chord to correct it · click any word to add a chord there · label blocks (Verse / Chorus) and mark repeats with the ×N button so the chart reads the way the song is actually sung.

Untitled

③ Publish

Take the blessed chart with you — and share it back with the catalog if the artist says yes.

Coming in v1: Swarm publishing (decentralized, permanent songbook pages), server-grade chord detection (CREMA), and an in-tool “open a pull request” flow. Want to help? The repo is open.

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