Inspired by the seventeenth-century masterpiece Don Quixote, “Man of La Mancha” is one of the most successful musicals in Broadway history. Powerful, hilarious, and heartbreaking, it celebrates the perseverance of a dying old man who refuses to relinquish his ideals or his passion. The celebrated score includes “The Impossible Dream,” “I, Don Quixote,” and “Dulcinea.”