An internationally acclaimed composer, Dr. Mahr received the 1991 Ostwald Award in the ABA Band Composition Contest for his composition The Soaring Hawk. He was elected to the American Bandmasters Association in 1993. Formerly director of bands at the University of Minnesota-Duluth and founding conductor of the Twin Ports Wind Ensemble, Dr. Mahr is the principal conductor of the Minnesota Symphonic Winds and is active as a clinician and guest conductor nationally and internationally. Recent commissions have come from the United States Air Force Band, the Music Educators National Conference, and the American Bandmasters Association. Twenty-five of his works have been published, with many released on compact disc recordings and included on state contest lists.
Dr. Mahr is a past-president of the North Central Division of the College Band Directors National Association (1999-2001), has served on the Board of Directors of the National Band Association (1996-98) and was a founding board member of the Minnesota Band Directors Association.