I was playing around with Audio and Animation one day and I found that I could draw a shape, and then animate it
I made a piano like UI, where one colour was linked to a key, paint your picture, then press the key to see it move.
At one point I used the midi-out on Teenage Engineerings' OP-1 to trigger the App, you can see it on their site
https://teenage.engineering/products/op-1/original/anniversary/made-on-op-1

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