When I don't game, I'm studying music theory and reading music history. Specifically, I'm reading about Chopin and his life. I'm a Chopin zealot and take great joy listening to his works and reading about him. It's a shame because I only have his Prelude in E minor under my belt from his repertoire of music.
Other than that, I dable on the RPG Maker vx program and make games I won't release until I'm satisfied with them.