Long March, also known as Long March, is an ancient folk song in Yuefu. Changganli is the area from Yuhuatai on the south bank of Qinhuai River to Xiachangganqiao today. In ancient times, most residents in Chang Gan traveled by water, so many beautiful folk songs were derived, which laid a solid foundation for the formation and development of Yuefu in the Six Dynasties.

The so-called long dry song, originally a folk song in the lower reaches of the Yangtze River, originated from Shangqing Xi song, which was recorded in Guo Maoqian's poem Yuefu Zage in the Song Dynasty, and its content was mostly about the life of fishermen on the river. Nourished by Guanghua in Wei and Jin Dynasties, many first-class scholars in the Tang Dynasty envied Jinling's bustling scene and euphemistic feelings, and wrote a beautiful "Longgan Canal" with the good news of Yuefu.