Mark Morris picks up baton in ‘Dido’ at Berkeley

Allan Ulrich for SFGate

"What is this? An interview?"
Mark Morris barks his queries in a phone call from Seattle in a mock-imperious tone that might daunt the weak of heart. Actually, it is precisely that; and the subject of this interrogation, cheerfully endured, is the choreographer's participation in the revival of Henry Purcell's tragic opera "Dido and Aeneas," with which the Mark Morris Dance Group opens the Cal Performances dance season this week.