It may even be the case that the sine qua non of "greatness" in art is that the deeper you look into it (and the network of signifiers surrounding and defining

It may even be the case that the sine qua non of "greatness" in art is that the deeper you look into it (and the network of signifiers surrounding and defining the work) the more interesting it becomes. And that's not to say that "accessible" art isn't 'great'-- the more pedal steel I play, the more jazz I find in country music. It was fun when I was just listening to it, but the more I listen to (some of) it the more useful, interesting musical I find.