To create guitar synth sounds with ease, just attach a Roland GK 3 pickup, plug in to the Roland GR-20 guitar synthesizer, and play. Tons of pre-loaded sounds, like flute, saxophone, and percussive loops amongst countless others, come stock with the GR-20 and a few quick-editing knobs let you adjust attack, release, chorus, and more effects. Lightning-fast tracking takes place through digital pitch detection so you'll always sound on point.