MIDI
- JavaMidi - MidiPort by Robert Marsanyi, Tom Erbe
- MIDI.COM - THE MIDI Guide
- MIDI.ORG, MMA, MIDI Manufacturers Association
- MIDI Farm
- MIDI File Format
- MIDI Technical Fanatic's Brainwashing Center
- MidiShare - Grame - cross platform MIDI API
- MidiShare - Java native library
- MIDI Libraries for Unix
- NoSuch MIDI - Java interface
- HMSL - Hierarchical Music Specification Language, Forth based for Macintosh
- KeyKit
- Timidity - MIDI to WAV
- Wire - Java API for MIDI by Niels Gorisse