The Broadway musical has greatly influenced American (and world) culture. Such shows as Oklahoma and Annie Get Your Gun are as "American as apple pie," while the long runs of imports like Cats, The Phantom of the Opera, and Les Mis rables have broken records. Broadway has produced such cultural icons as Ethel Merman, Yul Brynner, and Julie Andrews, and composers and lyricists such as Irving Berlin, George Gershwin,...