This is only minor, but Haruki Murakami has had me rethink classical music. Before then I had never really enjoyed classical music; I'd always thought it was what old people or weird homeschooled children were into. It was interesting the first few times that Murakami mentioned classical musicians and after awhile I decided to actually listen to the mentioned pieces while listening to his books. I haven't thrown out my old collection of rock and rap and replaced it with classical music, but I have found that I enjoy solo violin and solo guitar pieces and have incorporated a few into my music library.