Music can serve many purposes and they tend to be positive. However, on certain occasions, music can boost our negative emotions and keep us in a loop we need to get away from.
Think of depression and the ruminating effect. We tell ourselves over and over again that we are in a bad situation, no one loves us, we don't matter, and so on. Music can boost that feeling, and keep us in that state. We might even develop a classical conditioning effect: whenever we hear certain songs, our body will react how it used to when we were in that negative state, draining us once again.
I guess I got a little negative with all of this, but it's just so we know that we have to be aware of how we interact with music.
Thanks for sharing about the awesomeness of music!