Sounds, Music, and Video Clips on the Web
•The MIDI (Musical Instrument Digital Interface) format is a standard adopted by the music industry for controlling devices that create and read musical information.
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•The MIDI format digitally records information about each element of the sound, including its pitch, length, and volume.
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•It is easier to edit music recorded in the MIDI format because you can manipulate the individual characteristics of the sound with precision.
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•MIDI files are much smaller than WAV files and are often used on the Web.   They usually have a .midi or .mid file extension.