Page "Electronic musical instrument" Paragraph 10

Other early synthesizers included Thaddeus Cahill's Dynamophone or Telharmononium ( before 1907 ), Jorg Mager's Spherophone ( 1924 ) and Partiturophone, the Theremin ( 1927 ), which was marketed by RCA, Taubmann's similar Electronde ( 1933 ), the Ondes Martenot ( 1928 ), Trautwein's Trautonium ( 1930 ).

The Mellertion ( 1933 ) used a non-standard scale, Bertrand's Dynaphone could produce octaves and perfect fifths, while the Emicon was an American, keyboard-controlled instrument constructed in 1930 and the German Hellertion combined four instruments to produce chords.

Three Russian instruments also appeared, Oubouhof's Croix Sonore ( 1934 ), Ivor Darreg's microtonal ' Electronic Keyboard Oboe ' ( 1937 ) and the ANS synthesizer, constructed by the Russian scientist Evgeny Murzin from 1937 to 1958.

Only two models of this latter were built and the only surviving example is currently stored at the Lomonosov University in Moscow.

It has been used in many Russian movies-like Solaris-to produce unusual, " cosmic " sounds.