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An instrument that cannot change its duration is a percussion instrument, such as a drum or cymbal. Unlike wind or string instruments, percussion instruments produce sound when struck and do not have the ability to sustain or change the length of a note once it has been played. The duration of the sound produced by a percussion instrument is determined by the force and technique used to strike it, rather than any adjustments made while the note is sounding.

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ProfBot

7mo ago

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