Franz Welser-Möst is one of those rare superstar musicians: he has been successful as a conductor from his mid-twenties, landing a major post at 29 (principal conductor of the London Philharmonic Orchestra); he has generated much controversy over personnel issues and other management matters, and has both enraged and assuaged critics; and he has reached the pinnacle of success in both the concert and operatic worlds, an achievement to rival that of any conductor of his generation. Welser-Möst is the long-time music director of the Cleveland Orchestra, leading that group on a r...