Making moves to make a simple drum machine app:

It does not look good…Gotta clean that up, make it a bit more formal looking. I very much dislike the cartoony side of things.
Honestly I think the audio side shouldn’t be that difficult, it’s really just a sinewave generator with a parallel array for the envelope above. Then each of the buttons toggles on or off the playback, but essentially that’s all you need for a simplified drum machine.