It's not Broadway, but if you're lookin for brassy and exciting, I recommend the albums "At the Hammersmith Odeon" by Bruce Springsteen, "Cowboy Bebop" by The Seatbelts, and "Let's Face It" by The Mighty Mighty Bosstones.
Anything sung by Ethel Merman -- she could make "Music of the Night" sound brassy.
Although I'm not sure that the OP and I are using the same definition of "brassy," I have the general impression that old musical comedies had more brassy numbers than other shows.
Audrey, the Phantom Phanatic, who nonetheless would rather be Jean Valjean, who knew how to make lemonade out of lemons.