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.