Song Ci is a new poetry genre popular among Han people in Song Dynasty, which marks the highest achievement of Song literature. Song ci has long and short sentences, which are easy to sing. Because it is the lyrics of music and harmony, it is also called tune, Yuefu, music movement, long and short sentences, poetry, piano music and so on. With its colorful and varied charm, it competes with Tang poetry and Yuanqu, and has always been said to be as famous as Tang poetry, representing the prosperity of a generation of literature. Later, there was a book with the same name, Song Ci.