Andrew Litton, who has been music director of the Dallas Symphony Orchestra since 1994, has announced that he will leave the post when his current contract expires in 2006. In his time in Texas, Litton has hired nearly 1/3 of the DSO’s musicians, and taken the ensemble to national prominence as one of the top American orchestras. Litton says he intends to devote more time to conducting opera and developing children’s television programs about music. He will also continue to hold his current conducting positions in Minneapolis and Bergen, Norway.