What must it feel like for a beginning band or orchestra director to return to class after hearing an exquisitely played St. Louis Symphony Orchestra performance or another professional ensemble's concert? Are the class's wrong notes and off-the-beat rhythms all the more grating, or does the instructor take the long view by thinking, "It might not be obvious now, but a future St. Louis Symphony or Empire Brass member could be in this class?"
I would guess the answer is, "Both," but I'd be curious to know a rough percentage of both outlooks.
