Christmas 2007
MIDI (Musical Instrument Digital Interface) is an industry-standard
electronic communications protocol that enables electronic musical
instruments, computers and other equipment to communicate, control and
synchronize with each other in real time.
MIDI does not transmit an audio signal or media — it simply transmits
digital data "event messages" such as the pitch and intensity of musical
notes to play, control signals for parameters such as volume, vibrato
and panning, cues and clock signals to set the tempo. As an electronic
protocol, it is notable for its success, both in its widespread adoption
throughout the industry, and in remaining essentially unchanged in the
face of technological developments since its introduction in 1983.