The above video is of Randy George of The Ether and Aether Experiment. They recently produced an amazing cover version (plus music video) of the Gnarls Barkley song “Crazy” as played on a Theremin. I love this. I’ve been wanting to build/experiment on/learn to play a theremin for a few years now. Maybe this’ll be my motivation. By the way, the theremin is the first musical instrument designed to be played without being touched; so you should be able to figure out which instrument it is. For more on theremins, check out Wikipedia.