(Note: This post has been updated (1) as of 6:28 AM Eastern on 19 Nov. See below.)
Music journalist and blogger Greg Sandow posts an eMail addressing the issue of the changed view of cultural hierarchies and the hierarchies of art, and its practical effect on our present arts culture, from Princeton professor of sociology and research director of Princeton's Center for Arts and Cultural Policy Studies, Paul DiMaggio, that makes an interesting (or jarring, depending on how one responds to such things) contrast with this, and this, and this. Or vice versa.
I offer the above without further comment.
Update (6:28 AM Eastern on 19 Nov): Blogger Alex of Wellsung offers some thoughtful comments on this matter.