Example 9. Motivic and tonal summary of the Love Duet complex in Act II, Scene 2 of Tristan und Isolde, which will furnish the basis for the subsequent “recollection of memories” sections during the following scene and in Act III. The key of A♭ major forms the referential center for the three duets, which are linked by similar material. The music shifts to B major during the final duet, whose climax is interrupted by the intrusions of Marke’s entourage.

STRUCTURE | LOVE DUET I | LINK | LOVE DUET II | LINK | LOVE DUET III | ( STOLLEN 1 | STOLLEN 2 | STOLLEN 3 )

a.	Structure of ACT II Love Duets: (162/5/4 - 196/1/1)