In the September issue of Popular Science, Mike Kobrin reviewed the Moog guitar—an incredible instrument whose electromagnet pickups actually change the string's motion. Stick it in "mute" mode and you're playing a banjo; turn on "sustain" and it holds notes indefinitely. It turns out, however that writing and reading about the guitar can never be quite adequate. So Kobrin sat down and filmed it in action. Rock on, after the jump.