GR 500

TheRoland GR-500is aguitar synthesizer. Manufactured by theRoland CorporationandFujiGenin 1977, it was one of the firstguitarsynthesizers. The synthesizer module included Polyensemble, Bass, Solo Synth, and External synthesizer control. Much of the voltage-controller filter and voltage controlled amplifier sections were based on previous analog mono-synths from Roland. Sliders adjust the VCO, VCF, VCA, and LFO sections; there is no memory to store settings.