niMIDI is a library for parsing and writing MIDI files. Very much a work in progress, so function names and types are subject to change.

nimble install niMIDI

import niMIDI

let midi = parseFile("test.mid")
echo midi.header

(length: 6, format: ConcurrentTrack, tracks: 5, division: Metrical, ticks: 480, negativeSMPTE: 0)

writeMIDI("test.mid", midi)

• Add support for sysex messages
• Fix visibility macros
• Make it easier to manipulate the parsed MIDI data