[Berstein standing in concert hall, talking to audience:] anyone can enjoy a tune or a rhythm, that's easy. To enjoy the form of a piece of music is much harder. Then you have to be a real music listener. But a real music listener can see or hear the form of a piece just as clearly as a person can see the three-part form of a bridge. 

Now, confident that you are all new experts on the subject of sonata form, we're going to keep our promise and play for you the opening movement again of the Jupiter Symphony with which we began this program, the great C-major symphony. Only this time, because this particular movement is so much more expanded—so much more fully developed and elaborate than the movements we've been listening to—we have decided to enlist the aid of these nine young students from The Mannes College of Music, who are holding up blank signs at the moment. 

[students holding signs behind the Orchestra]
Now, what they're going to do, is as the music unreels itself, as each new section comes up, these nine charming youngsters, who as you can see have formed for you a very clear 3-part form already, are going to announce each section in turn, by turning the sign around. If any of you still have doubts about sonata form, these sign-bearers should clear them up for you. The only other thing I have to tell you about before we play is that for reasons of time we will not obey the repeat sign at the end of the exposition. Instead of being Beatles A-A-B-A, we're going to be just plain A-B-A. Otherwise, you're on your own; and I hope you do indeed hear this piece now with new ears. 



[ORCH: Mozart - Jupiter Symphony]