This Type of instrument named ANZ Synthesizer. This instrument has takes his name from the Russian composer Alexander Nikolayevich Scriabin ( A.N.S ). Alexander Nikolayevich Scriabin is a mystical theories of a unified art of sound and light had a huge effect on avant-garde composers and theoreticians in Russia during the early Soviet period. This instrument is a photoelectronic musical instrument created by Russian engineer Evgenzy Murvin from 1937 to 1957. Murzin’s has the objective which mean to build an instrument that combined graphics, light and music. This can give the composer an unlimited palette of sound.

To generate sound this instrument teh established photo-optic sound recording technique that used in cinematography. This technique makes it possible to obtain a visible image of a sound wave. Not only that, this synthesizer can synthesizing a sound from an artificially drawn sound wave.

One of the main features of this instrument is Marzin designed its photo optic generator, consisting of rotating glass disks each containing 144 optic phonograms.

2) https://monoskop.org/ANS_synthesizer

3) https://5mag.net/features/history-soviet-ans-synthesizer/