エレキギター Roland Guitar Synthesizer GR-1 美品
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Roland GR-55GK BK Guitar Synthesizer with GK-3 Pickup System - Black | KraftMusic.com
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Played by Jimmy Page, Andy Summers, Pat Metheny and More, Roland's Quirky GR Guitar Synths Were Surprisingly Versatile Creative Tools | GuitarPlayer
Roland GS-500 GR-500 Vintage Analog 1977 Guitar Synthesizer Controller
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1980's Roland GR-300 Synth Guitar Package Blue Solid Body Electric | Lot #84004 | Heritage Auctions
