BURCHARD TANG, viola, member of the viola section of the Philadelphia Orchestra, studied viola with Choong-Jin Chang, principal viola of the Philadelphia Orchestra. He attended the Curtis Institute of Music and studied with Joseph de Pasquale, former principal violist of the Philadelphia Orchestra. As a chamber musician, he has appeared at many of the country’s top festivals, including Marlboro, Ravinia, Music from Angel Fire, Seattle and Caramoor. He presently is on the faculty at Temple University, teaching viola and chamber music. He appeared at these concerts in 2007.