On the occasion of this performance, Caracas was treated to a Tristan und Isolde that is the very definition of all-star. Birgit Nilsson is a force of nature in the title role, showing exactly why she dominated Isolde for decades. Jess Thomas, in one of his earlier portrayals of Tristan, balances power with his signature lyricism, while Irene Dalis brings heartfelt devotion to Brangäne. Leif Roar, a singer far too underrated in his day, is a commanding and virile Kurwenal. And despite the glittering names, this performance might be worth it for Giorgio Tozzi's King Marke alone—exquisitely sung and deeply moving. The Orquesta Sinfónica de Venezuela rises to the occasion with remarkable success, handling Wagner's once-considered-unplayable score with assurance and nuance.