In this episode, we will introduce to you "Celebrating Birthday on Xianghua Mountain". "Celebrating Birthday on Xianghua Mountain" is a traditional opera of Cantonese opera, and it is also a play performed by the troupe to celebrate the birth of Master Hua Guang. "Happy Birthday on Xianghua Mountain" is composed of different brands of music, most of which are used to match the actors' entrance, movements and movements. Among them, the two most special ones, "Liangzhou Preface" and "Three Spring Brocades", were originally lost. However, in 2017, The Chinese Artists Association of Hong Kong was invited by the Leisure and Cultural Services Department and reconstructed by Master Gao Runhong. Both are singing brands, singing in Mandarin, that is, Zhongzhou rhyme.