Both of Mel Brooks' musicals had great, lengthy overtures. Most of the recent musicals that even have overtures have had brief, short ones; one or maybe two minutes. (URINETOWN, SPAMALOT, THE ADDAMS FAMILY, NEWSIES, GENTLEMAN'S GUIDE are among these ranks) Both YOUNG FRANKENSTEIN and especially THE PRODUCERS had tremendous, full-blooded overtures.
THE LIGHT IN THE PIAZZA had a gloriously understated overture, a beautiful entree into the world of Guettel's Italian soundscape.
Words don't deserve that kind of malarkey. They're innocent, neutral, precise, standing for this, describing that, meaning the other, so if you look after them you can build bridges across incomprehension and chaos. But when they get their corners knocked off, they're no good anymore…I don't think writers are sacred, but words are. They deserve respect. If you get the right ones in the right order, you can nudge the world a little.