A bicycle wheel with guitar strings, a touch-operated synth, and the “Demon Box” were just a few of the new instruments on show at Georgia Tech’s Guthman Musical Instrument Competition this weekend.

Explore the weirdest instruments available on Amazon as they’re tested and played live. From strange sounds to unexpected ...

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Pianos use little hammers striking taut strings to make tones. The Mellotron used lots of individual tape mechanisms. Meanwhile, the Trans-Harmonium from [Emily Francisco] uses an altogether more ...