The Emiriton (1932)

The Emiriton was an example of a series of finger-board electronic instruments developed in the Soviet Union in the 1930's, inspired perhaps by Leon Termen's avoidance of a standard keyboard with his Theremins. Other instruments included V.A.Gurov's (a former colleague of Leon Termen) "Neo-Violena"(1927) the"Sonar"(1930) and the "Ekvodin"(1931). 

Designed by A. Ivanov and A.Rimsky-Korsakov, The Emiriton was a originally a fingerboard instrument allowing the use of glissando effects, with later models incorporating a standard keyboard. The Emiriton produced sound from neon-tube oscillators. 

Leon Termen, an ex Cellist, developed a fingerboard "Theremin-Cello" in the USA in the early 1930s 

Further Information: