This humidifier runs next to my bed all night in the winter.
Sometimes its groans and whirs are so interesting that they keep me
awake and I have to turn it off. It plays little cadences, drones,
and repeating beats that constantly change. Or I’m just hallucinating
in my half-asleep state.

I’ve been meaning to record it for months. It didn’t do anything
particularly exciting during these 45 seconds, but you can hear it
subtly change even in that time.

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An improvised ocarina design, laser-cut and assembled from
cross-sections. It’s much less ergonomic but easier to assemble than
last year’s laser ocarina.

Plans and instructions are on thingiverse: www.thingiverse.com/thing:6182

p.s. I’m teaching a laser whistle workshop this Saturday in Brooklyn!

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CAUTION: LOUD AND UNPLEASANT NOISE!

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Materials: drumsticks, wooden dowels, wood glue.

Plus a bonus sound for today–crunching through snow with a crispy crust of ice:

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For all four years of the instrument-a-day project, my noisy
refrigerator has plagued me: I have to unplug it whenever I record a
new instrument at home.  Well, today I exploited it.

Materials: refrigerator noise, filtered by resonant tin cans.

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Found wood, guitar strings, zither pins, scrap acrylic bridges, and a weird overhead pickup made of crudely-wound wire and a magnet out of a dead hard drive.

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