Well, I've been thinking about that we have two groups of people. First group need absolute silence when studying, while the second group enjoys having loud music during studying, and often can learn better with music.
I have a theory that it has something to do with auditory vs. visual thinking. You know, auditory thinker needs silence so his thoughts are not disrupted, while visual thinker is not disturbed by the noise.
What do you think? Do you need silence to concentrate or music is welcomed for you?