Roland G-707 Guitar Controller

The Roland G-707 Guitar Controller is a MIDI controller designed for use with the Roland GR-700 guitar synthesizer. It was released in 1983 and was used by many guitarists, including Steve Vai, Eddie Van Halen, and Joe Satriani. The G-707 features a five-octave keyboard, a pitch-bend wheel, and a modulation wheel. It also has a built-in arpeggiator and a built-in sequencer. The G-707 can be used to control the GR-700's sounds, as well as other MIDI devices. It also has a built-in expression pedal, which can be used to control the volume, filter, and other parameters of the GR-700.