A violinist with Boston Symphony Orchestra (BSO) practises before the performance at Shanghai Oriental Art Center, in Shanghai, east China, May 4, 2014. The Boston Symphony Orchestra (BSO) made a performance in Shanghai on Sunday. The BSO, the first American orchestra that visited China in 1979 after the two countries established diplomatic ties, made its long-awaited return to the country this May. The BSO is an American orchestra based in Boston, Massachusetts. It is one of the country's five major symphony orchestras commonly referred to as the "Big Five". (Xinhua/Fang Zhe)