Sound recording and modulation for Hack Days prep

[Noah Gibbs]

If we're going to dump a bunch of people into Scarpe for a sound-and-music themed Hack Days, we need better sound and music examples.

I'm going to try to get basic-pitch and ffmpeg put together into a fun silly modulation demo -- tentatively "sing into the mic for a bit and we'll turn it into 8-bit arcade bossfight music," but we'll see if I can make that work. Otherwise I'll do something else with it.

Would be good to have other sound demos, though!