The Flying Apsaras musical premiered at Beijing's Poly Theatre from April 25 to 27. CHINA DAILY A new musical takes the Mogao Grottoes as its setting and subject, innovatively blending genres, cultures and eras, as well as myth with reality, Cheng Yuezhu reports. Several years ago, stage musical producer Li Dun spent seven days visiting the Mogao Grottoes in Dunhuang, …