I have a friend who plays piano, and it is more of a hobby than a profession. He is good enough of a player to get little side gigs playing at weddings and stuff like that. He works a full time job, but he really could just quit that job and play piano all the time if he wanted to. Mostly, he enjoys playing classical music. One of my favorite songs that he has been playing recently is La Campanella by Liszt. It is a very impressive song from the romantic period. I think it is lovely. He plays it from the piano scores, but he is already starting to play some of it from memory.