I noticed this in an article by Terry Teachout in the April '05 Commentary entitled, "Singing the Classical Music Blues."
While reading his piece, I saw parallels to the condition of establishment literature. Teachout quotes critic Joseph Horowitz, who calls the art a "potted hothouse product . . . Sustained by a lifeline to the universities . . . lacking a constituency beyond themselves," and says its proponents have "produced an undistinguished species of hermetic art."
Are Teachout and Horowitz talking about aristocratic music or aristocratic literature?