Opera History 98 MUSIC 91 Music 82 Genres & Styles 78 History and criticism 68 Production and direction 68 más ... Criticism and interpretation 52 Operas 41 Printed Music 39 Philosophy and aesthetics 34 Instruction & Study 33 Lyrics 32 Theater 32 Vocal 32 Voice 32 Opéra 30 Social aspects 29 Music and literature 24 Political aspects 24 Oper 22 Dramaturgy 20 General 18 Histoire 17 Singers 16 Libretto 14 Performances 14 Musique 13 Women in opera 13 Musicians 12 menos ...