feedpak format specification

feedpak is an open, hand-editable package format for interactive music notation — guitar/bass tab, standard notation, drum tabs, lyrics, vocal pitch, beats, sections, and the audio stems that go with them. One .feedpak holds all the authored data for a single song.

The format is plain-text-first (a YAML manifest indexing JSON data files), self-describing, and designed to be extended without breaking existing readers.

Read the specification Hand-editing guide

Documents

• Specification — the authoritative, normative reference.
• Hand-editing guide — practical "edit your own pack" companion.
• Changelog — version history.

Machine-readable schemas

JSON Schema (Draft 2020-12). These are the hosted, resolvable counterparts of each file's $id / $ref:

• manifest.schema.json
• arrangement.schema.json
• song-timeline.schema.json
• notation.schema.json
• drum-tab.schema.json
• keys.schema.json
• lyrics.schema.json
• vocal-pitch.schema.json
• vocal-pitch-contour.schema.json

License

Specification prose is dedicated to the public domain under CC0 1.0; the schemas, examples, and reference tooling are MIT.