What ever became of the "replay" button that videotapes posted here used to have? Now when I try to hear something, all I can get is disjointed snippets and when that's finished, the box with the video fills up with little sub-boxes that advertise other performances none of which is this one. Anyhow, from what I heard -- at the end of the GRAVE, I'd recommend doing the run with the 64th and 128th notes in very exact time. One should be able to hear the difference, as far as speed goes, between the 64th-note sextuplet and the 64-th note septuplet, and between the 64th-note septuplet and the ensuing 128th notes. When you get to the Eb minor section, Artur Schnabel recommends doing the left hand leggierissimo, and I agree. Good luck on this.