You probably start to tolerate a song you don't like better the longer you are exposed to it. Of course, at some point boredom kicks in. You find pleasure both

You probably start to tolerate a song you don't like better the longer you are exposed to it. Of course, at some point boredom kicks in. You find pleasure both in what sounds familiar (thus harmless, cozy) and in what sounds novel (a new experience, an opportunity for gaining knowledge).