Skyline Pioanotronic 61

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via this auction

Controls for Tune, Bass, Pianos, Piano, Clavichord, Timbre, Phase, Phase Rate, Phase Reactance, Output Level..

"If you've never heard one, here's a nice description: 'piano sounds like a square wave mixed with a sawtooth, the clavichord is a pulse wave, and the bass is a square wave, very short and percussive and electronic sounding. Best sound....piano mixed with clav with phase on - instant Kraftwerk,'"

Note this is the first post to feature the Pioanotronic 61.