Criticism and interpretation 146 Composers 144 Operas 122 Opera 106 Music 105 Performances 56 History and criticism 52 more ... History 48 Librettos 38 Influence 37 Antisemitism 28 Political and social views 28 Analysis, appreciation 26 Compositeurs 25 Appreciation 24 Philosophy and aesthetics 24 Dramaturgy 17 Family 17 Musicians 16 Opera producers and directors 16 Relations with Jews 15 Production and direction 14 Influence (Literary, artistic, etc.) 13 Music and antisemitism 13 Opéras 13 Composers' spouses 12 Correspondence 12 National socialism and music 12 Philosophy 12 Rezeption 12 less ...