YAMAHA PortaSound PSS-270 Voice Bank stereo Synthesizer Keyboard mains power VGC
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VOICE
YAMAHA PortaSound PSS-270 Voice Bank stereo Synthesizer Keyboard Working
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Roland RS-50 Keyboard Synthesizer 61 note 64 voice with power supply
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Yamaha EL900 VA Custom Voice Disk
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YAMAHA voice Expander CVS-10
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