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80's ROLAND GR 500 GUITAR SYNTHESIZER MODULE - FOR PARTS ONLY _READ | eBay
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Roland GR 500 Guitar Synth 70's Honey Burst REDUCED PRICE! | Reverb
Roland GR-500 1977 Vintage Analog Guitar Synthesizer - Photos, Videos, Documentation
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1978 Fujigen/Roland GS-500/GR-500 Guitar Synthesizer Sunburst W/ Original Manual! | Reverb
Roland GR-500 w/ extremely RARE FC-50 foot controller & System-100 Model 102 Expander — www.gearzley.com
