Pop quiz: What's the most important thing about opera singer Luciano Pavarotti? (A) He used his vocal gifts to bring joy to millions; or (B) He was white, and not black or Latino. If you're a normal person, you'd choose option A. But if you're the New York Times chief classical music critic, Tony Tommasini (or some other equally lousy person), you choose B. Tommasini last week published what might be the single worst arts piece ever published by the formerly revered, now auto-cannibalizing Gray Lady. And since I have no word limit on this column, I might as well...