Yes, this is an old thing I’m linking to (old in the web-sense, which means it’s from last year) but it’s interesting and music-related and actually something I thought about a lot while writing Weird Novel, though nothing like it was ever included.
Two notes on this: 1, if you aren’t familiar with The Apples in Stereo, check them out. 2, if you’ve never heard of one, a theremin is an instrument you play without touching it – and that’s pretty cool in and of itself.
If that’s just a little too weird for you, or maybe you want something more physical and less mental, Imogen Heap recently invented these: Hi-Tech Musical Gloves and I’d give an eyeball for a pair. Not mine, but, you know, someone’s. 😉