The ‘Sonothèque’. L. Lavallée, France.1936

L. Lavalée’s ‘Sonothèque’ or “sound library” was a  “coded performance electronic instrument using photo-electric translation of engraved grooves”. The instrument was capable of reading music and sounds encoded graphically with conductive ink sensed by a set of electrically charged brushes


Sources

Thomas LaMar Rhea. ‘The Evolution of Electronic Musical Instruments in the United States’ 1972

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