Siberia: prelude to Act II I Medici: prelude to Act I Lohengrin: prelude to act 1 Lohengrin: prelude to act I Parsifal: prelude to act 1 Parsifal: prelude to act I I Medici: prelude to Act III Lohengrin: Prelude to act III Carmen- Prelude to act I 9. Edgar: Prelude to Act IV