I sometimes listen to music while studying. It really depends on what music I'm listening to and what subject it is. However, I remember last year I tried to memorise the main points for an essay before I went into the exam and sang all the points to the tune of one song on my ipod (I can't remember which one though and I came up with this idea because I'd tried everything and nothing helped the points stick in my head.) and I did really well because I just had to get the tune going round my head and everything that I'd read kinda flowed out onto the paper haha.