The epic grandeur of Der Rosenkavalier stems not just from its immense length (over three hours) but from the all-too-human complexity of its characters--each of whom is smitten with someone else--and the endless stream of graceful melodies the composer conjures. After the tonality-stretching dissonance of Salome and especially Elektra, Strauss moved onto a different musical path here: the music's sheer gorgeousness has given this most heartbreaking of 20th-century operas its pride of place in the repertory.

For this 1994 performance at the Vienna Opera House, conductor Carlos Kleiber leads a committed reading of the buoyant score that savours every note. The three leads are superb singer-actresses who get full marks for embodying Strauss's most richly romantic creations: Felicity Lott (the Marschallin), Anne Sophie von Otter (Octavian) and Barbara Bonney (Sophie) also offer a truly entrancing final trio, one of the great scenes in all opera.