Yamaha GC1 5’3″ and Yamaha GC2 5’8″ Baby Grand Pianos The GC Series sits at the intersection of home grand piano and serious performance instrument — built in Japan with spruce soundboards, Yamaha’s V-Pro plate casting, and the same attention to touch and tone that defines the professional line. The GC1 at five feet three inches fits comfortably in a living room without compromise; the GC2 at five feet eight inches steps up with a larger soundboard and a noticeably fuller, more resonant voice. Both are the right choice for pianists who want a Japanese-made instrument with genuine musical depth.