Several comments:

Ratings: A close reading of the book would have it banned not just in Boston but world wide. It includes graphic scenes of murder, extra- and pre-marital sex, child pornography, cannibalism, slavery, lying, cheating treachery of all stripes, etc. But where would we be if we banned the Bible? And if you can't ban the Bible, why would you ban anything else?

Art is right. Ratings are a useless waste of energy. Worse, they are the first step towards banning the rated activity.

Jazz - When I hear an audience applaud a particularly wild piece of jazz improvization I want to scream out "The Emperor is not wearing any clothes! That ain't music!" But the old jazz, big band stuff and slow moody stuff, is good and I consider that to be music.