Spectral / Additive Synthesis the physical way. Etching a spectrogram into a glass plate and transforming this to sound using opto-electric technology.
ANS synthesizer
Unique Soviet Synth ANS (BBC The Soundhunter 4)
There is surviving music. Mostly of Russian origin. As often, as movie scores.
Eduard Artemiev - Solaris (Original Soundtrack), 1972
Another earlier album created on an ANS
ANS Electronic Music (FULL ALBUM, soviet early electronic music, USSR, 1969)
