Ci: a genre between poetry and prose in ancient China, also called Fu, or Ci Fu: a style name and a poem. A poetic style, developed from five-character poems, seven-character poems or folk songs, originated in the Tang Dynasty and flourished in the Song Dynasty. Originally, it was a poetic style sung by music, and the length of the sentence changed with the tune of the song, so it was also called long and short sentences. Poetry and slow words are generally divided into two parts.
Song ci: it is a new poetic style, with long and short sentences, which is easy to sing. Because it is the lyrics of music and harmony, it is also called tune, Yuefu, movement, long and short sentences, piano music, poetry and so on.