I think the focus of the media changes. At the moment the more electronic stuff like trip-hop was the flavor of the month, just a little while ago. It all depends on the angle, from which point of view you see it. ↗
Art works because it appeals to certain faculties of the mind. Music depends on details of the auditory system, painting and sculpture on the visual system. Poetry and literature depend on language. ↗
Somebody said writing is easy, you just sit down at your typewriter and open a vein. It depends on the book. Some, I have to do quite a lot of research, which I like. Others are much closer to me. ↗