I'm still digging for it, but I fear it is lost! Indeed, Kempff's second movement in D959 is wonderful. A nice gentle stillness at the start. Still, that wild and crazy section that follows could certainly be more wild and crazy. And the first movement is nice as well, though the sound is hard and top heavy. As I mentioned above, I find the third movement slow. But like you said, it does pick up when the mood shifts. And the finale is wonderfully played too. So all in all, not perfect, but for a warm, "human" interpretation, this one more than fits the bill.