If I had paid to see this performance in the theater I would've thought my money well spent. Hearing it at home I have some reservations. The sound is mostly very good, but there is what sounds like station interference that disturbs sections of the performance. The volume goes up and down annoyingly; it affects the first 18 minutes of the first act and thereafter intermittently in the other two acts . It's not a deal breaker and the recording can still be enjoyed - just a friendly heads-up.This was probably one of Nilsson's last outings as Isolde. She is still very good, but honesty insists I mention that there are many other performances where La Nilsson is even better. There are some intonation issues (she and Cox are distinctly flat in their Act Two duet), nor are the top Cs as spot-on as they were in earlier days. Cox is a solid Tristan, the kind we'd be raving about today. He doesn't do anything particularly memorable, but he holds up his end of the bargain well. The Portugese mezzo Regine Fonseca sings a beautiful Brangäne and Jef Vermeersch is an excellent Kurvenal. Mazura's voice is rather dry, but his diction and specificity make him a fine Marke. Wallet is a good conductor and leads a solid performance; he makes the traditional cut in the Act Two love scene.For Nilsson completists and/or fans of the other singers.

It is not bad Tristan. Brigit Nilsson - you can hear a strain in her voice, but after all it is a live recording. It is very interesting to have her in her great role nearing the end of her illustrious career. Cox is very good, perhaps a little bit tired (when dying, but this dramatically convincing). I liked Regine Fonseca as Brangaene, because it was my first encounter with her. Same goes fo Jef Vermeersch as Kurwenal. Both are very competent. I enjoyed rich and balanced voice of Franz Mazura as Marke. Orchestra of Nationaltheater Mannheim is very good and conducting is done by able Hans Wallat. One of those great, less known German Kapellmeisters.

I'm very satisfied that could listen Cox's Tristan.