I think I have mentioned before that the music I listen to tends to reflect the mood I am in. I also use music to try and change the mood I am in. I have a play list of music to listen to when I am in a bad mood, and the songs I picked for that list are ones that put me in a better mood. One song in particular is Street Spirit (Fade Out) by Radiohead. It manages to bring me back to center every time I hear it. Thom Yorke's vocals along with Johnny Greenwood's guitar have the ability to calm me down and bring me back to where I need to be.