Karajan appeared briefly at Bayreth after its postwar reopening but then bowed out, never to return. There are pirates and airchecks of his Wagner performances, including a Rheingold and Tristan, but to myy knowledge the only official Bayreuth recording was EMI's live Meistersinger, now a classic despite its inadequate mono sound.
This single CD of the last act of Walkure is also a classic, widely circulated in a References issue and now refurbished. There's only so much that can be done with the rather boxy mono, but that is beside the point. Here is postwar Wagner singing at a very high level propelled by Karajan's inspired conducting. Many consider the Fifties to be Karajan's greatest era, and this impassioned performance could be offered as evidence. Varnay makes a great impression as Brunnhilde, Bjoerling less so as Wotan, although he is never less than good. The eight Valkyries have never been bettered.
All in all, one of the indispensable Wagner recordings from that era, which seems golden in retrospect.