Ashlan Tullock

QUINCY — Preston Trinh, violin, and Ashlan Tullock, xylophone, are the winners of the Quincy Symphony Orchestra Association’s 67th annual Martha McCrory Young Artists Competition. The competition, open to 10th through 12th graders, was held Dec. 18 at First Union Congregational Church in Quincy. The winning musicians will receive a cash prize and perform as…