Mark Sorlie has served as the national warranty manager for Winds, Strings and Educational Percussion instruments for the Yamaha Corporation of America for over 10 years. He oversees the setup of custom level woodwinds and the repair of returned items, as well as handling warranty issues for dealers and end users. He is originally from the Dakotas, but has been located in the Chicago area for almost four decades. After years as a traveling musician he entered the retail and wholesale music world, where he worked as a repairman and in many other areas of management in the industry. He loves making music, traveling and cooking.