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or use a flashlight or bicycle blinky light for interesting effects
The wooden case is built from hundred-year-old reclaimed wood
It'll output some serious bass if you're into that
Beep-it Optical Theremin analog Please contact me with anyBeep it is an analog optical theremin, which is to say it's a simple electronic musical instrument that responds to light. There is a video demonstrating what Beep it sounds like and can do here: That is an older version of Beep it that was made of plastic. This one is made of wood and is much nicer. By using your hands to cast shadows over Beep it or waving it around near a light source, one can generate a wide range of pitches. Careful manipulation
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