From the silver screen to the Great White Way, small community theatres to television sets, the musical has long held a special place in America's heart and history. Now, in The Oxford Companion to the American Musical, readers who flocked to the movies to see An American in Paris or Chicago, lined up for tickets to West Side Story or Rent, or crowded around their TVs to watch Cinderella or High School Musical can finally turn to a single book for...