When writing reviews of previous CVP and CLP pianos (up to 2011 when 'Keyboard Player' Magazine closed), Yamaha did tell me that there were some C7 sounds but not labelled as such. Probably something like 'Rock Piano' or 'Pop Piano' - so long ago that I can't remember. If those sounds are still on board - perhaps in 'Legacy', then they won't be as accurate as the later sounds. Ten years has allowed Yamaha to use much more sample ROM for its best quality sounds.