Congratulations on your student winning the Van Cliburn!!!!! I love this sonata. I'm an older guy and can't do i now. Makes me sad but I know that's what God want from me (or doesn't want). You play it so well, like it is part of you. Thank you for this.
I realized several months ago that Sony Korea published Prof. Sohn's complete Beethoven Sonatas in 2020. I spent several weeks looking for this CD set. It is out of stock in pretty much all the online music shops in Korea. I finally bought this complete recording in digital file from Qobuz. Love this so much!