Music exists in different types and forms. We are also of different types. Is there any correlation between our personality type and the kind of music we like? There have been many speculations on this, but very few empirical studies. Here is a study which I came across. But there is a caveat. Do not take it too seriously.
http://www.scribd.com/doc/5573359/Music-tastes-link-to-personality-Press-release