Musical Instrument Digital Interface (MIDI)
[The feature associated with this page, Audio Mixers, is a legacy feature. It has been superseded by Volume Controls. Volume Controls has been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use Volume Controls instead of Audio Mixers, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
The Musical Instrument Digital Interface (MIDI) is a protocol and set of commands for storing and transmitting information about music. MIDI output devices interpret this information and use it to synthesize music.