Does Music Speak Your Soul?

I've read somewhere about some researchers who believe that music we listen to indirectly defines our personality. I don't know whether to agree or not. I listen to different genres, different styles and different types of music from different generations. Pretty much anything that I perceive is nice to my ears. In that case, does my differing taste in music define that I have multiple split personality? Wow..

I think that, to me, the music I listen to doesn't necessarily define my personality as much, but more on my moods or the going-ons in the world around me. 70% of the time the type of music that I listen to is largely influenced by my mood of the day. 30% of the time is because I'm just simply hooked on the song like vampires to blood. Today I could be listening to a Michael Buble song because I feel relaxed, tomorrow I will be bobbing my head to Semisonic's Closing Time or Nickelback. Loud music is just perfect when I'm feeling pissed off. Soft, slow, smooth music the likes of Michael Buble, Norah Jones...even Jewel settles my nerves at the end of a long uninspiring demotivating day when I'm feeling blue. It's no wonder I've been listening to these 3 fellas for the past month! And, when I'm feeling a little lonely, 80's love songs are my poison. As a closure, I don't have multiple split personality but I do have a lot of mood swings.