There are quite a few slips
. Its still crude, since its the first public performance.
With Aimard I worked only chamber music with my quartet, although his recording of it at the Carnegie Hall recital is very very good.
My absolute favorite version of this work is by Radu Lupu, although the only version I have heard was taken with a hand-held recorder, since he never recorded it comercially, that Im aware of. The version by Glen Gould is also very nice, although quite different than any other. Radu's version is great musically, although there are quite a few slips everywhere, perhaps that is why he never recorded it comercially?
In my experience, this sonata has many "molto accelerando" and "molto crescendo" and "molto everything....", so it is necesary to take a lot of risks when doing it so the idea works, otherwise, youll hit all the notes, but it will sound boring, like so many other 20th century works.
In regards to the recording quality, the microphones were too close to the piano, and the hall was a big one, so I had to play on occasion overly bright so the sound would fill the hall. This sounds well from 20 yards away, but not when the microphone is stuck right on top of the strings.
In regards to contemporary repertoire, I have some Ligeti and Takemitsu and Lutoslawski, as well as some Schnittke chamber music. Unless you want to count PRokovief, shostakovich and Martinu as contemporary? I was a pianist at some contemporary music festivals, so I have played quite a lot of it, although its usually to forget most of it the next day.
Thanks for the comments!