Origin of Tonal Pattern

There is diction firstly for Yuefu poems.And then the musician makes music score.Shen Yue said in the Book of Song DynastyFor complicated verses of Wu ballads,There is only song at the first.And then the musical instrument is used.The music score is made finally.The origin of lyricsIs in the same way.Based on the song made by musicianThe lyrics are written.The song is separated from the score for a long time.We cannot tell which score matches with the song.Today, Cipai (names of the tunes to which poems are composed) spreads all over the world.There are thousand of Cipai.People who can tell which score matches with the songare few.People have forgotten that they are lyrics for a song.They are only special characters for literators.