DESC: On Order. 45 Day Lowest Price - 100% Satisfaction Guarantee. In 1976, Yamaha released the first of the CP series stage pianos. These "electric grands" became instant classics with their authentic sound and live performance convenience. Thirty years later, Yamaha celebrates those milestone keyboards by unveiling the latest and greatest in the CP series. Drawing on our rich tradition and experience, these instruments give the live performer all the sound and expressiveness of a superbly mic'd grand piano with the portability and versatility of a modern digital instrument. Introducing the new standard in stage pianos - the CP series.