Roland GR-20 Guitar Synthesizer with GK3 Pickup Complete guitar synthesis system with GK-3 Divided Pickup and GK cable Easy to use - select a sound category (Strings, Organ, Synth, etc.) and play! Quick editing via Attack, Release, Chorus, and Delay/Reverb knobs Digital pitch detection for lightning-fast tracking Includes Roland's latest sounds like sax, strings, flute, brass, bass and percussion loops