Operas 63 Musicals 36 History and criticism 21 History 13 Operetta 10 Criticism and interpretation 9 Music 6 Intellectual life 5 Popular music 5 Songs (High voice) with orchestra 5 Theater, Yiddish 4 American literature 3 Civilization 3 Motion picture music 3 Motion pictures 3 Musical theater 3 Opera 3 Revues 3 Social aspects 3 Social life and customs 3 Songs (High voice) with piano 3 African American authors 2 African Americans 2 Comedy films 2 Drama 2 Imperialism in literature 2 Jazz 2 Jewish theater 2 Literature and globalization 2 Orchestral music 2