Pollini was then still very objectivisant (metamorphosis 2000s was both surprising and very successful), the piano is very straight, with his little work and a lack of contour lines. As much as I quite like the sonatas recorded by Pollini, so here I find that this stiffness serves the purpose. Pollini is ascetic end to end, across the cycle this can be somewhat stifling.
Fischer-Dieskau is very different from its most broadcast recordings over the infinite sweetness of his first recordings, perfection of the line for his recordings with Moore. Here everything is much more sophisticated, the line is (too) worked, and that the voice is gaining variety of color, she also loses irretrievably stamp of beauty. The tone is very expressive, what works in Die Krähe example where the performer is a rare wickedness, but we never find infinite consolation Fischer-Dieskau brought us in the 50s.