Zachacious

Write correct JavaScript/TypeScript using the musictheoryjs npm package (v3) — notes, intervals, scales, chords, keys, Roman numerals, progressions, voice leading, rhythm, sequencing, MIDI files, ABC/MusicXML notation, microtonal tunings, and audio analysis. Use whenever code imports musictheoryjs, when adding music-theory features to a project that has it installed, or when debugging code that uses it.