Put a CEO and an orchestra conductor into a room together, and the two will have more in common than they might imagine. The CEO faces management challenges, sure. But the average conductor presides over a notoriously unhappy, professionally frustrated group of people every day — orchestra musicians, who in a landmark 1996 Harvard study were found to be less satisfied with their jobs than were federal prison guards. Contrast this with the group of workers at the top of the study’s job-satisfaction scale: string quartet musicians. The players in this smaller performing group ranked the highest in job contentedness and professional growth. For Boston Philharmonic Orchestra (BPO) conductor Benjamin Zander, the reason for the disconnect between the outlooks of orchestra musicians and those in small string quartets has to do with leadership. A string quartet is a cooperative group; an orchestra is led by a conductor.…