Roland G707 Guitar Controller and the GR 700 Guitar Synthesizer. Still have mine. The controller (guitar) was made by the same folks who bring you Ibanez, I bel…
File:Roland G-707, GR-700, StarrSwitch Datapump 620 guitar synthesizers, Kurzweil K-250, Museum of Making Music.jpg - Wikimedia Commons
Roland GR-700 - Programmable Analog Guitar Synthesizer
MATRIXSYNTH: Rare Roland GR-700 & G-707 Roland Guitar, Synth Set, Original Box, Manuals Nice
Vintage Circa 1984 Roland GR-700 Guitar Synthesizer Grey – Rivington Guitars
Played by Jimmy Page, Andy Summers, Pat Metheny and More, Roland's Quirky GR Guitar Synths Were Surprisingly Versatile Creative Tools | GuitarPlayer
Mark Wood Roland GR-700 Synth Ethics - Programming and Performance
MATRIXSYNTH: Roland GR-700 Turbo PLUS Guitar Synthesizer - w/ DT-200 Programmer & Extras