Sure, Moog is known to many for cranking out stellar analog synthesizers, but the outfit also has a knack for building a stable of Etherwave Theremins. In fact, founder Bob Moog started tinkering with the space-controlled instruments back in 1954. If youre a bit unfamiliar with the devices, theremins use two metal rods to control pitch (vertical) and volume (horizontal) based on the proximity of the users hands to each end, without ever touching the unit.