Holy crap, in a good way. I really dug using the optical sensor at the end and also need to point out that I knew they were using an optical sensor to trigger the synth.
Not counting completely unobtainable stuff like a Kyma system and a PPG Wave and a maxed out Syncavier, of course.
And let's throw in the RCA Mk II while we're at it, I want that thing. Morton Subotnick's granddaughter comes in to my work sometimes, maybe she can hook me up with it. I don't think anyone else is using it for anything.
Pretty cool. I wish someone would develop an app with this kind of tactile idea. There's a few node-based programs out there on iOS that are not bad, but they are insanely complicated to program.