Don Grolnick was a subtle and rather underrated pianist throughout his career, but his flexibility and talents were well known to his fellow musicians. Grolnick played in rock bands while a teenager but was always interested in jazz. He worked in the early fusion group Dreams (1969-1971), the Brecker Brothers (starting in 1975), and in the early '80s with Steps Ahead.
He has long been a busy session musician often utilized by pop singers. In the 1980s, Grolnick appeared in many settings including with Joe Farrell, George Benson, Peter Erskine, David Sanborn, John Scofield, Mike Stern and the Bob Mintzer big band