At 26, New York Philharmonic principal oboist Liang Jang is one of the youngest principal players in an American orchestra, and his meteoric rise through the country’s orchestral ranks serves as a useful analogy for the rise of Chinese-born musicians in Europe and America. But “despite his extraordinary ability and success, Mr. Wang, like many Asian-born musicians, has had to confront preconceptions about his ability to connect with Western classical music.”