You're obviously right; the claim is by Syntax Creative, on behalf of Pro Piano Records. The content is 14 Bagatelles, Op. 6: Lento by Jerome Lowenthal.

I made the video[0] public so people can see it, but I hate the idea that these creeps get to make money off of a scam on my part, so I usually mark them private.

0: https://youtu.be/a__9f4yh4qU