Music synthesizer

Music synthesizer polyphonic *electrophonic instrument of the electronic type, built by Radio Corporation of America in 1951, when it was designed primarily for tone-analysis purposes. Tuning forks are used as primary tone sources for electron tube oscillators. All characteristics of each tone are controlled by a punched code on a paper roll. Thus the synthesizer produces only stored signals and consequently must be regarded as an addition to musical automata. The tones produced are both…