A pioneering electronic instrument played without touch, the theremin can produce a wide range of eerie sounds. Introduced by Lev Sergeyvich Termen in 1921, the instrument responds to hand motions, which control the pitch and loudness. Information about the theremin is available at various Web sites, and if you’re dying to play it yourself, you can download software that allows mouse movements instead of body appendages to control the scintillating sound.
Go to: http://www.bbc.co.uk/science/playground/theremin1.shtml and http://www.thereminworld.com/
