... is MIDI? MIDI stands for Musical Instrument Digital Interface. Mostly, MIDI is an extensive set of "musical commands" which electronic instruments use to control each other. The MIDI instruments pass these commands to each other over the cables connecting their MIDI jacks together. A MIDI command consists of a few (usually 2 or 3) "data bytes" (like the data bytes within files that you have on your computer's hard drive). These data bytes are merely a series of numbers. We refer to one of these groups of numbers as a "message" (rather than a command). There are many different MIDI messages, and each one correlates to a specific musical action. For example, there is a certain group of numbers that tells an instrument to make a sound. There is a different group of numbers that tells an instrument to stop making a sound. One of the numbers within that "Note ...

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