A keyboardist is a person who plays the keyboard instrument, like a piano or synthesizer. They use their hands to press the keys and create music. Full definition
Among the names he has collected so far are six U.S. presidents, The Doors keyboardist Ray Manzarek, Cole Porter and Karl Marx, who is not remembered for coining the phrase, «Law - school dropouts of all lands, unite!» (legalblogwatch.typepad.com)
And just like that, he finds himself thrust into the music scene as chief keyboardist in the eccentric pop band the Soronprfbs. (moviereviewworld.com)
He was a founding member of Spymob and the touring keyboardist for Pharrell Williams and N.E.R.D.. (dissonance.website)