Music to the Soul? Or feeding the fire?

I have always found that music is an amazing outlet for all my emotions. Finding just the right song to listen to feels like an outward expression of my inward emotions. Whenever I have a bad day or I am just completely overwhelmed with emotions, turning on my iPod is often the first thing I do, and it feels like the first step to feeling better. However, today in class we discussed the concept of catharsis (which is essentially a theory that says that through seeing or hearing emotions expressed we virtually let go of our own negative emotions). This theory has been proven false. When we see aggression expressed on TV our own aggression is not satisfied. In fact, it is said that it makes us even more aggressive to see or hear of acts of aggression. This made me wonder about my own practice of listening to sad music when I am sad or angry music when I am angry. I used to think of it as such therapy, but now I realize I wallow in my emotions more than I work them out when listening to music. I still believe I will continue to use music as my emotional outlet. I know view it as a way to come to terms with my emotions, but I also realize it may not be as therapeutic as I once considered it to be for me.