Three Broadway musicals from throughout the 1970s- in the intentions of their creators and actors, in the reception by critics and audiences, and in the messages of the book and music themselves- reflected larger social issues of the time. Follies (1971) illustrated a narcissistic generation's concerns about marriage and aging, using as its fractured, nostalgic lens the lighthearted entertainment that existed before World War II. A Chorus Line (1975)...