tonalis-music-dsl 0.1.0

Music-theory domain: notes, chords, intervals, scales, harmonic function.

music-dsl

Pure music-theory domain library: notes, intervals, scale degrees, chord qualities, scales, and chord encoding. Zero runtime dependencies. This is the Python reference implementation; TypeScript (@tonalis/music-dsl on npm) and Rust (tonalis-music-dsl on crates.io) ports conform to the same spec and a shared 429-case conformance suite plus a seeded three-way differential fuzzer.

music-dsl is the theory core underneath tonalis, the format-agnostic lead-sheet DSL, and is fully usable on its own.

Install

pip install tonalis-music-dsl

Use

from music_dsl import Key, Notes, Scales

key = Key(Notes.Bb, Scales.Major)

# deeper theory lives in submodules
from music_dsl.domain.chords.chord import Chord

chord = Chord("C7")        # raises InvalidChordStringException on bad input
print(chord.encoding)      # canonical numeric chord encoding

The import name is music_dsl (underscore); the distribution name is tonalis-music-dsl.

Links

• Source, spec, and conformance suite: https://github.com/drycode/tonalis
• License: MIT