Sawallisch knew both where to linger and where not to dawdle in Wagner; that is evident throughout this entire performance. His cast has some singers not often heard in these roles in other recordings. Gerhard Unger, the quintessential David and Pedrillo, is heard as Mime and he is marvelous, really singing the role and biting into the text with great ferocity. Klaus Hirte is a good Alberich. Leif Roar sings the Wanderer so beautifully one just sits back and enjoys the sound. Ortrun Wenkel reminds us what a fine Erda she was from her sepulchral low notes to a ringing A-flat. Carl Christian Kohn sings Fafner's part extremely well with a rich, steady bass, but he emits none of the yawns or roars that Wagner asks for (that may have been the director's choice). Of the three Brunnhildes, this one suits Ingrid Bjoner's voice best. Her voice is steadier here than it was in the Walkure (reviewed elsewhere) and her high B's and C's are thrilling. Jean Cox is a sturdy, dependable Siegfried. If he tires a bit towards the end, who can blame him?This must have been recorded by someone holding a mic because he or she can't seem to sit still, especially during parts of Act Three. The voices are clearly heard for the most part. There are bits of Acts Two and Three missing (Siegfried's attempt to whittle his pipe before his famous horn call, some of the Wanderer/Siegfried confrontation), but nothing major.A worthy Siegfried then - on to Gotterdammerung!