Bio-bibliography Dictionaries 57 Music 51 Biography 36 History and criticism 21 Bibliography 13 American literature 11 English literature 10 German literature 9 Composers 7 Musicians 7 English poetry 6 Discography 5 Russian literature 5 Authors 4 Jazz 4 Theater 4 American poetry 3 Children's literature 3 Encyclopedias 3 English drama 3 French literature 3 History 3 Indexes 3 Italian literature 3 Literature, Modern 3 Poetry 3 American fiction 2 Authors, American 2 Authors, European 2