The Cleveland Orchestra Youth Orchestra has long cultivated aspiring student musicians and provided them with pre-professional orchestral training in a full symphony orchestra. Tonight at 8 at Severance Hall, the ensemble presents a special spring concert. featuring the music of Bartok, Bruch and Shostakovich. A prelude concert at 7 p.m. features Youth Orchestra members performing chamber music. Check out the Cleveland Orchestra website for ticket prices and other details. (Niesel)