What changes have taken place in ancient poetry between Han and Wei Dynasties?

There is a close relationship between China's poetry and music, and the development and change of the relationship between them has gone through three stages: following poetry with music, entering music with poetry, and composing words by sound. "Lyrics according to sound" is a more advanced combination of poetry and music under the new historical conditions after long-term development and evolution. Later ci and Sanqu all developed along the road of "composing ci by sound". Ci, formerly known as "Qu", "Qu" or "Qu Ci", is a musical style. Ci originated from the people, and after the prosperous Tang Dynasty, it became a common practice for literati to write Ci.