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How do musical instruments make their different sounds?

Air-Wiggling Machines
How do musical instruments make their different sounds?
Close your eyes at a concert and you can tell them apart instantly — the bright ping of a triangle, the round warmth of

Close your eyes at a concert and you can tell them apart instantly — the bright ping of a triangle, the round warmth of a cello, the cheeky honk of a trumpet. But here's the secret: every single instrument is doing the same one job. It's just doing it in its own peculiar way.

That one job is simple: wiggle the air. Sound is nothing but air being shoved back and forth, very fast, in tiny invisible ripples. Your ear catches those ripples and your brain calls it "music." So really, every instrument is just an air-wiggling machine. The fun part is HOW each one starts the wiggle.

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