Prophet-5
Polyphony you could save and recall. Sequential Circuits' Prophet-5 offered five voices, two oscillators per voice, and a patch memory that stored every knob setting, so a sound built in the studio could be called up instantly on stage.
That practicality made it a natural chord machine for synth-pop and new wave. Duran Duran, Depeche Mode, Vince Clarke and Kraftwerk all used one, and John Carpenter built his film scores on it. Choose it to hear where the warm, brassy polyphonic chords of early-1980s electronic pop come from, before digital synths cooled everything down.
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