this performance must've made a deep impression on me when I first heard it that I still remember it. I've been thinking about it a lot lately and attempting (as per my quixotic/pedantic tendencies!) a transcription.
I don't know how comfortable I'd be with the idea of this being performed as a replica of ES's performance. it's so personal and has so many spontaneous details that, if strained to be reproduced under "controlled conditions" might very well be very stiff and uncanny-valley. but it has been good to really put this music under the microscope and see just how rich and precise it is... lots to learn from.