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Just copped this Yamaha PS-20. : r/synthesizers
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Yamaha PS-20 Automatic Bass Chord System Vintage Synthesizer 49 Keys | eBay
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File:Yamaha PortaSound PS-20 with ABCS (Automatic Bass Chord System) playing with foot.jpg - Wikipedia
A Yamaha Automatic Bass Chord System keyboard (PS-10) postage unavailable
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Yamaha PS-20 Portable Synth Keyboard – Southside Guitars
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1981 Yamaha PS-20 Automatic Bass Chord System Analog Polyphonic Synth in White Great condition Works great 49 keys 10-voice… | Instagram
Yamaha PS-20 Automatic Bass Chord System 1981 - White | Reverb
Yamaha PS-20 Automatic Bass Chord System for Sale in Los Angeles, CA - OfferUp
