《宋书·志·卷十九》
查《周易》中说： 先王作乐舞来推崇功德，以盛大隆重的仪礼将音乐进献给上帝，并且祭祀自己的祖先，《尚书》说： 向上帝行祭祀之礼。 
按《易》称 先王以作乐崇德，殷荐之上帝，以配祖考 。《尚书》云： 肆类于上帝。 
The "Book of Changes" says: The ancient kings created music and dance to promote virtue, and with great and solemn ceremonies offered music to God and sacrificed to their ancestors. The "Book of History" says: To perform the ritual of sacrificing to God.