Unfortunately I got the audio from RU-vid and the original video was deleted/taken down before I uploaded the score, so I'm questioning myself about the performer as well. I remember it's a male pianist, but that doesn't help so much.
@@andrasderecskei7725 It definitely wasn't Kocsis... But the name was Hungarian, for sure. Here's the link to the video that I saved: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-HaxMWTKsNrk.html