I am very specific about listening to certain songs I own according to my present moods. I'm sure I'm doing music therapy. Doing it professionally is something I could imagine I'd be really good at, but then, the same songs affect different people different ways, so, without empathy (of which I have only a modest amount), I don't know how well I'd really do when working with other people. I'm too eccentric in my own tastes to predict what would affect other people positively.