Who wrote The Song of Eternal Sorrow?

Song of Eternal Sorrow is a long narrative poem by Bai Juyi, a poet in Tang Dynasty in China. This poem is the author's masterpiece, and the works of the same name in Song of Eternal Sorrow include novels by famous writers Wang Anyi and Duan Muyao. In addition, there are vocal works of the same name created by China famous musician Huang Zi, as well as puppet shows, TV dramas and Hong Kong films.