Dunno if it's really what you're looking for, but music always affects my actions. On a larger level, the music I listen to has really helped me - cheesy as it may sound - find who I am and what I want to do with my life. However, I believe that what I subconsciously wanted was what drew me to the music I like, not vice-versa.

On a smaller scale, individual songs can affect my mood greatly. I've learned to use this to help control stress - for instance, yesterday the kids in the library were bothering me, so I thought of one of the songs played at the concerts I went to over the weekend, images of the show followed, and I was immediately calm again.

For what it's worth, I am, above all, a JRock fan.