Peter Oundjian has been appointed music director of the Toronto Symphony. But first he’s got a couple of seasons to play out leading the Colorado Symphony. “That’s on top of guest-conducting engagements this summer with such premier orchestras as the Boston Symphony and Academy of St. Martin in the Fields, and his two ongoing posts of artistic director of the Caramoor International Music Festival in New York and music director of the Nieuw Sinfonietta Amsterdam.” Just eight years ago, Oundjian wasn’t a conductor, but a violinist with the Tokyo String Quartet.