Yamaha C6X Grand PianoIntroducing the Yamaha C6X grand piano The C6X is 6'11'', often thought to be the perfect size for a grand piano and the same size as the Steinway B. The instrument is small enough for the perfect domestic performance piano and large enough create the sort of sound to fill a smaller concert venue. The C6 has always been an incredibly popular piano here at Chamberlain Music, whether a C6L, a C6M or a C6X, and over the years we have sold numerous