I still remember how thrilled I was when I first heard this recording nearly 40 years ago. It still stands up very well, although it was in the vanguard of the revival of serious Rossini singing.
Joan Sutherland and Marilyn Horne were a famous combination both on record and on stage. Here they are presented at the very height of their formidable combined powers. At this point, Dame Joan's voice is fresh and firm, free from the scoops, swoops and mannerisms that later became associated with her singing. Alas, even at the time of this recording, her pronunciation had begun to deteriorate. There's little drama in her portrayal of the Babylonian queen, but one can still revel in the sheer beauty of the voice and the blazing coloratura. Marilyn Horne, however, has plenty of passion and power. Here alone is ample evidence of why this magnificent artist was so instrumental in the revival of Rossini's serious operas. The voice is rich, the technique perfect and the coloratura brilliant. A breathtaking achievement! (I had the pleasure of seeing her Arsace in the theatre, as well as her Calbo in "Maometto II", the title role in "Tancredi" and her comic renditions of Rosina, Isabella and Cenerentola.)
The men on this recording aren't so well represented. True, John Serge does a creditable job of the one aria he's allowed. But Joseph Rouleau (Assur) and Spiro Malas (Oroe) can't even fudge their fioratura.
Richard Bonynge conducts his own, heavily cut, version of the score. As a point of reference, it's about 45 minutes shorter than Ion Marin's recording on DG using the critical edition published by the Rossini foundation. As a first, or only, recording of this opera, I'd recommend that on DG. But, no one who appreciates Rossini or coloratura singing will want to be without this set. The women are worth it!