Observed arrival · 2026-09-12

Codex Musica

codexmusica.com Observed source

Editorial interest 84/100 Selection signal · not a rating of the site

A machine-readable catalog of recording recipes spanning 2,503 music traditions and 1,406 instruments.

Landing page captured for the 2026-09-12 issue.

Field notes

The catalog separates a pre-compiled read-only JSON layer from a live editable engine. Developers can fetch every tradition in one roughly 0.8 MB file, or resolve individual tradition and instrument records through indexed endpoints. The page also exposes a streamable HTTP MCP connector with nine tools for reseeding recipes, swapping variants, changing room, signal chain, or tuning, and modifying the instrument and tradition lists.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

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