Is "Songs of the Chu" a ballad that originated in Jianghan Valley and Chu?

Chu should be the Jianghuai Valley; Most of the Hanjiang river basin belongs to the state of Qin.

Chuci is a kind of poetic style that rose in Chu State during the Warring States Period. It originated from Chu Ci in the Jianghuai Valley of China, and absorbed new forms of folk literature, especially Chu Ci. It changed the old four-character poems in The Book of Songs, especially Song Ya, into irregular poems with different lengths, established a new poetry genre, and marked the new development of poetry in the history of China literature. Representative poets are Qu Yuan, Song Yu, Jing Ke and Le Tang.