Chopin - Scherzo No. 1 - Coda
I spent a few weeks practicing my chromatic scales so I could play the coda to Chopin's Scherzo No. 1. Part of this piece is featured in one of my favorite music-themed cartoons:
Also I just generally enjoy the piece, even if it is a little too repetitive. It's not very fun to play, though. Except for the coda.
aka good enough