Key to Change viola student, Tyree Carr III, wins Concerto Competition Tyree Carr III, a 15-year-old violist from Seattle, has been selected as the winner of the Key to Change Concerto Competition and will perform as a soloist with the University of Washington Philharmonia Campus Orchestra on May 30 at Meany Hall for the Performing Arts. As part of Key to Change’s partnership with the University of Washington School of ...