"Americans love musicals. Americans invented musicals. Americans perfected musicals. But what, exactly, is a musical? In [this book], Jack Viertel takes them apart, puts them back together, sings their praises, marvels at their unflagging inventiveness, and occasionally despairs over their more embarrassing shortcomings. In the process, he invites us to fall in love all over again by showing us how musicals happen, what makes them work, how they captivate...