I often use music to set the tone for my writing. It helps create the vibe I'm trying to convey. When I'm sitting there staring at a blank monitor, and attempting to get inside a characters head music is a very useful tool.
When I wrote my love scenes I listened
to romantic music. "Breathe" by Faith Hill is so beautiful. It was one
of the many songs I listened to while working on the book. Here's one of my favorite versions of the song.