I am a member of an endangered species. Encountering dangerous members of the species makes me frightened or sick, especially at 82. I happen to think that I am better than a lot of them, on the strength of having studied with superior teachers and stayed awake in their classrooms. (The best of them, Joseph Kerman, wrote a book whose title I stole for this article. I also dedicated my own recent book to him.) The best of the active critics are Mark Swed, Alex Ross and, I guess, myself. All three of us have four-letter names. But so does Adam Baer, so this proves nothing.?