I recently posted about student expectations with regard to course difficulty. Students — the same ones — have been mentioning, again, how difficult my two content courses are. This is not surprising, really, since in one we’ve been discussing the contribution of African-American popular culture to mainstream American (and really, global) popular culture — in terms not just of tangible contributions like to the musical language, to language itself, to style, to abstract ideas like “cool,” but also how African-American culture (or certain understandings [and misunderstandings] of aspects of it) got taken up consciously by, say, the beats, as an …