and computers to work with each other regardless of the manufacturer, a standard interface format was developed called MIDI, Musical Instrument Digital Interface.
HARDWARE BASICS
In order to implement MIDI, at least two devices are needed, a TRIGGER (or a MASTER) and a SLAVE. The most common master device is a keyboard. The most common slave is a sound module, for example a synthesizer or a sound sampler. MIDI can also be used to attach musical devices to a computer so that compositions can be recorded, edited, and scored.