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Yamaha SY55 Music Synthesizer Workstation Keyboard MIDI Tested Working Japan

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Vintage Classic YAMAHA SY55 Music Synthesizer Keyboard Piano Synth SY-55

YAMAHA SY77 Digital Synthesizer Keyboard FM AWM Workstation Tested Working Japan

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YAMAHA QS300 MUSIC PRODUCTION SYNTHESIZER 61-Key MIDI XG AC100V 50/60Hz 7W