Article / Updated 03-26-2016
MIDI is a digital language developed in 1983 that allows instruments and devices to talk to each other by sending various messages back and forth. These messages include performance gestures, such as what notes you play, how you play them, whether you move any sort of controller, and so on. In 1996, the music products industry agreed on a set of standardized sounds, effects, and controller message response called General MIDI (GM) so that MIDI songs could be shared between devices and always play back sounding more or less the same.