What is the basis for Qu Yuan to fill in his poetry and music works such as Nine Songs?

The history of a nation's music development is bound to be related to its interwoven art history and cultural history. In ancient times, poetry, music and dance were integrated, and the vocabulary of poetry and music and dance showed that these art forms were closely combined. For example, many of the 15-nation folk songs contained in The Book of Songs are excellent folk songs from all over the country, which were written by the great poet Qu Yuan according to Chu Sheng (music in Hubei and Hunan today). Music and dance is an eternal art form, which not only reflects the early activities of our ancestors, such as Divide the Grains recorded in Lv Chunqiu, Dance with Animals recorded in Shangshu and Daxia, which is a famous ancient song and dance to praise Dayu's achievements in water control, but also has been greatly developed in China's court music and folk music activities.