The form of songs sung while playing the piano in Song Dynasty is Qin Song. Qin Song, that is, singing when touching the piano, is one of the important manifestations of Chinese guqin art, and it is an art combining poetry with music, which can better express the singing characteristics of guqin. Qin Song Gu Yuan, written by Song Dynasty writer Jiang Kui, is the earliest Qin Song music score ever seen.