Nineteenth-century New York was, after Berlin and Vienna, the third largest German-populated city in the world. German-language musical plays and light operas held an important niche in the lives of German immigrants and their families. John Koegel's Music in German Immigrant Theater: New York City, 1840-1940, tells, for the first time, the engrossing story of these theater works, and the many musical numbers from them that became popular as separate songs. Koegel documents performances, in German, of plays by Shakespeare and Goethe and operas by Offenbach, Verdi, and Johann Strauss. And he...