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All MIDI-ed Out: Sending Events to a MIDI Output Device

Musicians often use MIDI to send musical commands from one device to another. A common scenario involves connecting a keyboard (the musical kind!) to a bank of synthesizers. The keyboard converts the player's key presses into MIDI events. A MIDI keyboard may not even be capable of producing sound; instead, it may only send note commands to the MIDI output port. A MIDI cable connects the output port to a synthesizer's MIDI input port, and the synthesizer then generates the sound.

Computers are often used as MIDI sequencers, to record and play back music. The musician plays a sequence ...