Two overtures that never get mentioned in the realm of greatness, but should be:
Take Me Along - lushly and elaborately orchestrated by Phil Lang. It's like a layer cake. The title song pokes its way through the entire thing, until when it finally breaks through at the end, the effect is completely joyous.
No, No, Nanette - the show was orchestrated by Ralph Burns, with dance arrangements by Luther Henderson, and their work is perfection. I'm guessing that the Overture is Burns' work, and the swirling version of "Tea for Two" that ends it, with the first piano going nuts with triplet flourishes up and down the keyboard has always thrilled me.
Begin at the beginning and go on till you come to the end: then stop.