Kapustin Variations Opus 41 played by Yeol Eum Son, and Impromptu Op. 66 No. 2 by himself

During the last (2010-2011) Los Alamos Concert Association season, Korean pianist Yeol Eum Son, a silver medalist in the 2009 Van Cliburn piano competition and 2nd prize winner in the 2011 Tchaikowsky competition, was a last-minute substitute for another competition-winning pianist. I recall enjoying her playing of a substantial chunk of Liszt, and being especially pleased to finally discover a jazz-influenced classical piece that made effective and idiomatic use of the language of bebop, but there was no program and I was having difficulty tracking it down.  I just figured out, with the help of Ethan Iverson's interview of pianist Marc-André Hamelin, in which the jazz-influenced composer Nikolai Kapustin (fansite here) is discussed, what it was: Kapustin's Variations Opus 41. Here's Yeol Eum Son herself playing it on Youtube:

Turns out there's a lot more of his stuff on youtube; here's Kapustin playing his Opus 66, no. 2 impromptu, which I think I like even better: