Today’s TDC is a fun one! Draw and shape or explore preset ones and watch/hear it turned into a drum sound. I think that’s what Eigendrum does, it’s as nerdy as one can get with the physics / math of drum shape / sounds. Of course I drew a cat, and you  can hear what it sounds like by clicking on the cat image here. Eigendrum Cat flickr photo by NomadWarMachine shared under a Creative Commons (CC BY-NC-SA 4.0) license

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