I'm not fluent in either Swedish or Finnish so I can't tell you who sings in which language, but this performance is superior to several better known Italian language performances. Svanholm sings well for this point in his career. He (just) manages the B-flats and knows how the score is supposed to go. His tone is a little leathery, but is still attractive. If you want to hear him in his prime, you'll need to hear one of his Met broadcasts of this role done a decade earlier.Valkki sings beautifully and conveys her character's plight effectively. The high C's are on pitch, but aren't her glory. Erickson is thrilling: a rich, luscious mezzo with a soprano-like top. Her judgement scene is the highlight of the performance. Sigurd Bjoerling is a handsome, ferocious Amonasro. Eric Saeden and Arne Tyren stock the lower roles very well indeed. Eva Prytz, who sang Gilda to Jussi Bjoerling's Duke, sings a lovely priestess. Ehrling's conducting is very persuasive. You've heard Aida in Italian umpteen times so listen to this not just for the fine singers, but the different languages. The sound is very good. A caveat though: my copy was afflicted with some file corruption (clicking) in portions of disc one.