BJÖRK, AND OTHER NEW BALLETS
The Opera House doors flew open this week for the throngs converging on the “Unbound D” program of world premieres. They were no doubt swelled by pop music fans anxious to savor the “Björk Ballet,” named after the mercurial pop singer featured on the sound track. But the flamboyant “Björk Ballet” by Arthur Pita had a double appeal: It is as futuristic as a Star-Trekky sci-fi special. The Marco Morante designs alone, with bizarre masks and costumes composed of little…