Theremin Etherwave
The Etherwave retains many characteristics of the original theremins, including a five-octave pitch range and reliable spacing between tones for sophisticated playability. It mounts on a mic stand and plugs into your own musical instrument amp. Complete with the instructional videotape by Lydia Kavina, audio CD by Clara Rockmore, photo-history booklet by Bob Moog, and a "hot-rodding manual" with customization ideas.