Codex Musica

Recording recipes for 2503 music traditions and 1406 instruments.

For AI agents / LLMs

This is a static, server-free catalog — open a URL and read JSON. No API key, no server, no rate limit. Each tradition has a compressed descriptor-stack recipe (how to record a song in that style) plus a structured arrangement.

Live editable engine (MCP connector) — start here: https://mcp.codexmusica.com/mcp — Streamable HTTP, no auth. Add it in Claude (Settings → Connectors → Add custom connector); any MCP client registers it the same way. Nine tools: seed a recipe from any tradition, then re-pick prefaces, swap part variants, override room/chain/tuning, and add/remove instruments or traditions. The JSON below is a separate read-only catalog, pre-compiled by a different pipeline — it reads the same catalog but words its recipes differently, and editing needs the connector.
All recipes in one fetch: api/all.json — every tradition's id, name, family, recipe string, and recipe_chars (~0.8 MB).
One tradition (recipe + full arrangement): api/traditions/index.json for the id list, then api/traditions/{id}.json.
Instruments: api/instruments/index.json then api/instruments/{id}.json.
Endpoint map: api/index.json
Full agent guide: AGENTS.md
Full engine (blend / customize / CRUD): the JSON above is the default recipe per tradition; for blending, add/remove instruments, variant swaps and more, clone the repo and run scripts/recipe.js (see SKILL.md).