This is a very intriguing study into Beethoven's genius!
Jonathan Biss is in the process of recording his version of the Beethoven Sonatas (piano). This work is his mental exploration into the genius of Beethoven and why no performer can ever really match the perfection and beauty in his works. Beethoven composed music with only the music in mind, the performer and their instruments were seen (by him) as inconveniences not to be excused or forgiven.
It is quite a heady piece.