Is There a Piano Concerto World?

i wonder if there's, like, other versions of this in other mediums. Is there a piano piece that's designed to be really hard for people who are really good at piano? What's the kaiso block of the piano concerto world? I think what's actually interesting when it comes to acting is, like, what's the negative space of that? All of it is theoretically for performing, even when you're doing a monologue in your house. Which is why i love tango. It's the only dance i know of that's, or other social dances that aren't built for performance,. Even if it's just to yourself. We have our performance video games