I term some music as filler music, and some as soul music.
The latter brings the emotions out of your arid and diffident self and requires some focus and concentration, while the other is usually what you listen to while you are engaged in something else, be it reading or surfing the net.
I am pretty engrossed in kpop these few days because of many awesome new songs such as 'no more perfume', 'longer' and 'ugly'. In the past few weeks though, I have been hooked on to some trance songs. Overall, it has been a good few weeks in camp and at home with the accompaniment of some inspirational songs (: Really needed them.