A University of Cambridge psychologist has come up with a couple of major categories that people seemed to fit into, and they're based on the kinds of music they listen to. He gave thousands of people a written quiz and then asked about their taste in music. What he found is only a theory but it's interesting insight into how your music may reflect how you're thinking at a specific time.
ELIZABETH COHEN, CNN SENIOR MEDICAL CORRESPONDENT: Oh, it's beautiful. Like very much.
SUBTITLE: What music says about your personality.
COHEN: So, what in the world would musical taste have to do with personality?
DAVID GREENBERG, MUSIC PSYCHOLOGIST, UNIVERSITY OF CAMBRIDGE: People who are high on empathy may be preferring a certain type of music compare to people who are more systematic.
COHEN: So, the theory is, is that the world is divided up between empathizers and systemizers.
SUBTITLE: Are you more of a systemizer?
GREENBERG: If you're looking at a mountain, a systemizer may say, "Wow, isn't it incredible that over hundreds of thousands of years this was moving and forming."
SUBTITLE: Or more of an empathizer?
COHEN: What would an empathizer think about when looking at a mountain?
GREENBERG: They might focus more on the order. They may say, "Man, I am really feeling emotional. This is incredible."
(MUSIC: ARCTIC MONKEY'S "DO I WANNA KNOW?")
SUBTITLE: Systemizers prefer intense music that forms complex sounds, like this song by Arctic Monkeys.
(MUSIC: Jack White "Lazaretto")
SUBTITLE: And this song by Jack White.
(MUSIC: RAGE AGAINST THE MACHINE "BOMBTRACK")
SUBTITLE: And this song by Rage Against the Machine.
(MUSIC: SAM SMITH "STAY WITH ME")
SUBTITLE: Empathizers prefer mellow music that evokes deep emotions, like this song by Sam Smith.
(MUSIC: JOHN LEGEND "ALL OF ME")
SUBTITLE: And this song by John Legend.
(MUSIC: NORA JONES "COME AWAY WITH ME")
SUBTITLE: And this song by Nora Jones.
COHEN: That's beautiful.
GREENBERG: Yes, you like that?
GREENBERG: What about it?
COHEN: It's just very soothing.
GREENBERG: Your empathy scores were very high. You would be classified as Type E, an empathizer. You have a greater drive to understand other people's thoughts and feelings and to predict how someone may react in certain social situations.
COHEN: The systemizers, how do they look at the world?
SUBTITLE: Systemizers: Greater drive to understand how the world is interconnected.
GREENBERG: They're focused much more on system and interpreting the world in terms of patterns that they can interpret.
SUBTITLE: Or you could be balanced.
GREENBERG: But then there's also people who are Type B, called balance. You have relatively equal empathy and systemizing scores.