I haven’t seen S practicing at home for quite a while, and this practice video was just very fun and charming to watch:
I like Tiffany’s videos. She was a philosophy major at Columbia and was in the Columbia-Juilliard exchange - graduated last year. She’s obviously an excellent pianist. Here’s a nice senior profile of her in the Columbia magazine:
https://www.columbiaspectator.com/commencement-2018/2018/05/15/senior-profile-tiffany-poon-cc-18/
I remember when she was a little girl in Juilliard precollege!