At first glance, Alonzo King and San Francisco make an unlikely pair. The city has a crunchy past and high-tech present while Mr. King's LINES Ballet is the picture of refined classicism. Yet there's a California ease and earthiness to his work, too. LINES Ballet returns to the Joyce with two New York premieres: "Writing Ground," set to an omnistic score of religious chants with a libretto by Irish writer Colum McCann, and "Concerto for Two Violins," set to Bach.