I don't know. I think the couple I have done were CP-70s - I don't really remember how many keys. As Ron N pointed out, from a piano standpoint, both sounded horrible - I don't know that more bad keys would make anything sound any better. But from a rock band standpoint where you want portability and "crank up the amps" - these things rock! They are a fun goofy instrument - definitely not something for the classical concert! Terry Farrell ----- Original Message ----- > Have you ever had a chance to tune a CP-80 (the 88-key version)? Can you > tell a big difference?? Or not?? > > Just curious. > > -bruce
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