MIDI is the electronic equivalent of sheet music. It is basically a set of instructions to tell MIDI players which notes to play, how loud, which instruments to use, what effects to employ, and when to stop playing notes.
MIDI comes in two forms: a “wire” format, in which MIDI commands are sent across a stream and expected to be handled when received, and a file format, in which the MIDI commands are stored in a file and are read and played from the file.
MIDI was invented so that musical instruments could communicate and so that one instrument could control another. It has been heavily used in electronic ...