Theremin, Leon, New York 1930
Lender: Andrej Smirnov, Theremin Center Moscow
Moscow 1978
46 x 20 x 20 cm, 5 kg
Wood, metal, tube oscillators

Video: Andrej Smirnov about the Terpsitone

The terpsitone is a variant of the theremin, and has a metal plate beneath a dance platform that acts as an antenna, thus allowing the vertical movement of the entire body to regulate changes in pitch. A second antenna behind the dancer is used to control volume through horizontal movement. A special mechanism limits the instrument to semitones only.