Listening to a great audio book called Worldliness by C.J. Mahaney. It is one of the audio books that I received from Christian Audio, from their reviewers program.
I just finished Chapter 3, which was about music. Chapter 2 focused on Television and other media, and it was absolutely convicting. This chapter on music was equally thought-provoking, but the overall experience of this book is to stir up my thoughts in ways that I don't always want to go.
I will give you a full rundown eventually, but for now, here is a great review.