As can be seen in the photo, the GX-1 provides a three-manual keyboard, with two having full-size keys, and the top one (referred to as the "solo" keyboard) having mini keys. All are aftertouch sensitive. A set of bass pedals (just visible at the bottom right) is also provided. There is also a ribbon controller above the solo keyboard, and a plethora of controls to modify various parameters. As in the CS80, many of these are "wheel edge" controls that move in an arc. The groups of buttons at the top center are patch selection buttons.