Music is my muse at times - when I hear a song, great lyrics and melodies, I envision certain scenes, whether in my private life, or in the lives of my characters. While I cannot listen to music while writing, because my mind will run away on a melodic journey just when I need to focus, when I'm relaxing or taking a road trip, the first thing I do is pick out which CDs to bring along.
For my last few books I've used music as chapter headings. It's so easy to find appropriate titles with messages that fit the scenes, and also, it's plain old fun.
The song used in the final chapter of my current novel is Where Does My Heart Beat Now, by Celine Dion.
What type of music makes your writer-heart beat?
Do you add song titles/lyrics to your stories every now and then?