I'm not sure how effective trying learn of someone's personality by means of the music they listen to really is.
I don't listen to one particular genre of music. I'm a big music fan, and my playlist is scattered with everything from rap, to classic rock, to metal, to punk, to pop, and so on (no country though - sorry, KB). I have no idea what someone would assume about me based on the music I listen to. Or what they could assume, for that matter.