Broadway Star Joined: 8/7/10
Technically, many of the examples listed are of counterpoint, rather than harmony (see How is Counterpoint Different from Harmony), but I'm very happy to roll with it!
Maybe I missed it, but I don't think I've seen "Lida Rose/Sweet and Low" from The Music Man, yet. I love Marian's counterpoint melody over the barbershop harmonies!
Again, I may have missed it amongst all the Sondheim examples, but I also love "Pretty Lady" from Pacific Overtures.
For strict examples of harmony, I agree with the aforementioned Floyd Collins and Parade mentions as well as the Quintet from WSS and "Make Our Garden Grow" from Candide.
This was a fun thread to read through and hear those harmonies in my head, but I'm surprised that no one has mentioned the greatest musical choral writing of all time (IMHO):
Sweeney Todd, "The Letter" ("Most honorable Judge Turpin..." ). In a show filled with brilliant works, this short piece has always stood out. Not only are the harmonies gorgeous, they convey exactly the mood and intentions of its 'writer' Sweeney at that moment.
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