"Of late, publishers and authors have begun to experiment more with audio as a natural step in the promotion of their books. Listening to music has always been an organic piece of literary consumption — anyone who has queued up a favorite record of sad ballads while reading a heartbreaking novel, in order to up the emotional catharsis can attest to that. But recent trends suggest that readers are looking for even more direct ways to incorporate music into the reading experience."
The article gives some links to authors' playlists on Spotify. Listen to some of the same music your favorite author listened to while he or she wrote their novel!