I couldn't ever figure out the piano either. My mother, grandmother, and great-grandmother played and the first song I ever heard my mom talk about was Für Elise. How ironic, must be popular.

Here is a video/post about Pianista I made the other day if you haven't already seen it. The game is fantastic. Free to play on mobile and a paid version on Switch. Both are fantastic.
@daltono/rjpgmosz