Orange Tree International Music Art Training. Beijing Dance Training College for the Elderly of the Open University of China was established in May, 20 19. Among them, Orange Tree International Music Art Training is the best, and there are professional teachers who specialize in training middle-aged and elderly people. The environment is good. Beijing, referred to as "Beijing", is the capital of People's Republic of China (PRC). One of the four municipalities directly under the Central Government and the second largest city in China. It is the national political center, cultural center and international exchange center.