Members of a choir of Air China sing during the First Prairie Chorus Festival in Sonid Right Banner, north China's Inner Mongolia Autonomous Region, July 24, 2019. As one of the events of Sonid Right Banner Ulan Muqir Art Festival, the chorus festival kicked off on Wednesday. Ulan Muqir refers to a traveling art troupe performing for herdsmen in remote areas. The Sonid Right Banner Ulan Muqir was founded in 1957. (Xinhua/Cai Yang)