Roland GR-55GK Guitar Synthesizer with GK-3 PickupThe Roland GR 55GK Guitar Synthesizer is a revolution in guitar synthesis, with features never before available in any guitar processor. In terms of speed, its the fastest ever. Its also the most accurate, thanks to newly developed pitch detection technology. As for sound, the triple core generator houses a world class array of virtual guitars, basses, amps, and synth voices, enabling tones and textures that have never been heard before. Onstage or in