It has often been said that the ultimate purpose of rock & roll, in all of its many mutations, is to annoy one's parents; if that's true, then Barney may well be the ultimate rock & roller. Of course, as a purple dinosaur aimed directly at the toddler market, Barney lacks considerable street credibility, but perhaps no musical entity in years has proven quite so irksome to parents, let alone anyone else with the ability to cut up their own food; young children love him unconditionally, and as a consequence, he has risen to enormous popularity, with any number of records, books...