Gu Fang's guzheng song is called "Guang Ling San". "Guangling San" is a classic of ancient Chinese music. Its creation and performance have a long history, and it is still popular today. It is said that "Guangling San" first appeared in the "Qinpu" of Xiao Tong, a writer in the Liang Dynasty of the Southern Dynasty, and continues to this day. This piece of music expresses the ancients' profound understanding of nature, life, and emotions with its melodious, fresh and varied melody, and is known as a representative work of guzheng music.