China National Center for the Performing Arts(NCPA) Chorus and Orchestra rehearse "Ode to Joy" with conductor Lu Jia in Beijing, capital of China, Aug 7, 2017. NCPA invited media and more than 110 audience to the rehearsal on Monday. From August 8th to 9th, Lu Jia will conduct NCPA Orchestra and Chorus to interpret Beethoven's Symphony No. 9 in D Minor, also known as "the Choral". [Photo/Xinhua]