The Yamaha CP70, as well as its bigger sister the CP80, was a ground breaking instrument. Inside it had the mechanics of a real piano, except that to make it all fit, the strings were a lot shorter than they would be on a real baby grand. The shorter strings gave the Yamaha CP-70 a very characteristic sound.
Tony Banks (Genesis) replaced the RMI 368x Electra Piano in 1978 with the Yamaha CP-70 electric grand piano. He would continue to use it for Genesis tours until the late 80s.
Tears For Fears
Other Notable Users
Benny Andersson of ABBA
Keith Emerson of Emerson, Lake & Palmer
Keith Godchaux and Brent Mydland of the Grateful Dead;
Hall & Oates
Kerry Livgren of Kansas
Aaron Morgan of Seabird