Opera History 27 History and criticism 23 Music 23 Criticism and interpretation 17 Operas 13 Social aspects 10 more ... Opéra 9 Analysis, appreciation 7 Influence 7 Oper 7 Performances 7 Political aspects 6 Stories, plots, etc 6 Appreciation 5 Analyse et appréciation 4 Composers 4 Librettists 4 Music and literature 4 Opéras 4 Philosophy and aesthetics 4 Libretto 3 Librettos 3 Musical theater 3 Production and direction 3 Singing 3 Women singers 3 Aesthetics 2 Death and burial 2 Heroines in opera 2 less ...