There was a time when one might have been surprised to find an article about, say, Girl Talk nestled within the fussy pages of The New Yorker. But for years now Sasha Frere-Jones, the magazine's pop music critic, has been broadening the magazine's appeal with his perceptive and funny observations on everything from Radiohead to Coldplay. (Ha.) (See also: Miscegenation.) Jones is also that rare breed of critic who actually creates in his field......