How did Chinese traditional dance music develop gradually?

Chinese traditional dance music has a long history. In primitive society, the ancestors of China created the art of singing and instrumental music, which was integrated with dance. The content recorded in Shangshu Yi Ji, that is, "stone-bashing, all animals dance at the same speed", and the content recorded in Lv Chunqiu, "Ge's former joy, three people fuck the ox's tail and cast their feet with songs", describe the general situation of the combination of dance and instrumental music, and dance and singing. In the pre-Qin period, the forms of singing and dancing praising leaders' achievements were highly valued by slave owners, and there appeared six music and dance works in succession: Yunmen in Huangdi period, Daxian in Tang Yao period, Dashao in Yu Shun period, Daxia in Yu Xia period, Daling in Shang Tang period and Zhou Wuwang period. These works were arranged and rehearsed in the music and dance organization "Da Le Si" in the Zhou Dynasty, and they were often performed in court etiquette procedures, and also became the basic teaching materials for teaching aristocratic children. Music and dance, which originated from ancient "Yi Music" and was used in the ritual activity "La Worship", also spread widely in this period. The tombs unearthed in Lijiashan, Jiangchuan, Yunnan Province during the Spring and Autumn Period and the Warring States Period also show Lusheng dance music and bronze drum music used by frontier ethnic minorities at that time. Since the Qin and Han Dynasties, a comprehensive art, including music and dance performances, has developed rapidly, and then Daqu, which was developed on the basis of harmony songs, made the music and dance form with the coexistence of dance, song and instrument show the characteristics of high-level and large-scale structure. During the Sui and Tang Dynasties, various folk songs and dances in Chang 'an complemented each other. The magnificent structure and gorgeous style of Nine Music Pieces and Ten Music Pieces reflect that the dance music of this period has entered its heyday. After the Song and Yuan Dynasties, folk dance music of all ethnic groups flourished until modern Han people's yangko, lanterns, tea-picking songs and Hua Gutiao, as well as ethnic minority songs, pottery villages, shaman tunes, inspiration music, string dance music, Lusheng dance music, instrumental dance music and animal dance music all flourished, and traditional dance music also flourished in various ways.