Mark has performed with Gerry Mulligan, Jaco Pastorius, Frank Sinatra, Maynard Ferguson, Bob James, Charlie Haden and Mose Allison. He is a first call studio musician, and has played on over 2,000 commercials in the competitive Chicago market. He has been a jazz faculty member at DePaul University since 1983, as well as Elmhurst College. Currently, he is performing as a guest soloist and clinician/adjudicator at high schools and colleges throughout the United States representing the Selmer Company.

"I've been listening to Mark Colby for twenty years, and I've seen him grow into a master of the saxophone and master of the music he plays."

Stan Getz

"Mark was a great asset to our event,  providing incisive comments and excellent clinic work. He has an uncanny ability to lock in with both youngsters and adults."

Dr. John Harding, Director of Jazz Studies
University of North Carolina