A library to parse a Midi file using @tonejs/midi
and convert a track
from that file into an array of chains, phrases and notes for use with LSDJ.
Uses @tonaljs/note
convert MIDI note values to notes and
@tonaljs/core
to calculate intervals between notes
import { readMidiFile, processTrack, processProject } from 'midi-to-lsdj';
function exampleUsage() {
const midiData = readMidiFile('super-amazing-song.mid')
const trackOneChains = processTrack(midiData.tracks[0], midiData.header.ticksPerBeat)
const projectConfig = processProject(midiData)
console.log(trackOneChains, projectConfig)
}
The library offers the following features:
- Time Signatures changes (adds a
H00
command if numerator doesn't resolve to 16/16) - Triplets (Adds a table with delta between root note and the triplet notes)
- De-duplication of Tables, Phrases and Chains
- Tempo changes
- Chords
- Sweeps when notes are pitch-bent in file
- De-duplication across multiple tracks
- Drums
- Advanced de-duplication of Phrases making use of transpose
- LSDJ save file creation (so you don't need to enter it all by hand)
- Validation of Midi file to ensure that no more than 256 Tables, Phrases and Chains across the song