When Mark Morris announced plans to choreograph a new version of the Delibes-scored ballet, Sylvia, it immediately became one of the most-anticipated events of the 2006 season. But Clive Barnes isn’t the least bit impressed with the results: “Morris, a modern dance master with classic leanings, still approaches ballet like a man talking a foreign language: with a misplaced confidence, a very limited vocabulary and a totally unconvincing accent.”