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Unformatted text preview: change as you make them longer, tighten the strings, pluck or blow harder. .. Explain how you could change the pitch of an instrument by precisely an octave. Explain what's so special to humans (and music) about an octave. Explain why some percussion instruments tend not to have well defined pitch, but do have a sort of &quot;rough pitch&quot;. Predict how that pitch depends on the size of the instrument, and what else might matter besides size? Design a drum whose pitch you can change. Explain why electric guitars are so quiet if they're not plugged in....
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- Spring '08