Conductor Shao En is pictured during a symphony concert in National Library Arts Center in Beijing, capital of China, June 24, 2019. The original symphony "The Great Wall" made its debut here on Monday. (Xinhua/Han Xiaoyu)

Beijing Symphony Orchestra perform the original symphony "The Great Wall" in National Library Arts Center in Beijing, capital of China, June 24, 2019. The original symphony "The Great Wall" made its debut here on Monday. (Xinhua/Han Xiaoyu)

Beijing Symphony Orchestra perform the original symphony "The Great Wall" in National Library Arts Center in Beijing, capital of China, June 24, 2019. The original symphony "The Great Wall" made its debut here on Monday. (Xinhua/Han Xiaoyu)

Artists Zhao Hanyang (R, front) and Zhao Yuanchun (L, front) play traditional Chinese instruments Erhu during a symphony concert in National Library Arts Center in Beijing, capital of China, June 24, 2019. The original symphony "The Great Wall" made its debut here on Monday. (Xinhua/Han Xiaoyu)