The theremin musical instrument is best known for creating the spooky or eerie sounds heard in many 1950s science fiction films. It is a unique instrument being "played" without being touched. This electronic musical instrument is named after its Russian inventor and physicist, Professor Leon Theremin, who patented the device in 1918 (or 1919).The controlling section consists of two metal antennas that sense the position of the player's hands. It then controls oscillators for frequency with one hand, and the volume (amplitude) with the other, therefore, played without being touched. The electric signals from the theremin are then amplified and sent to the loudspeaker and heard.