Abstract:
Shangshu says:“poetry is the expression of earnest thought,singing is the prolonged utterance of that expression,the notes accompany that utterance,and they are harmonized themselves by the rules of intonation,(In this way) the eight different kinds of musical instruments can be adjusted,so that one shall not take from or interfere with another,and spirits and men are brought into harmony.”in this passage,“that expression” is the panpipes，“the notes” means the sounds of the panpipes，“the rules” means standard tubes,“they” means eight different kinds of musical instruments,these standard tubes are used to adjust the pitch of eight different kinds of musical instruments.Shun appointed Khwei to be Director of Music that has something to do with sacrificial ceremonies which is a kind of teaching behavior that relates to ritual and music.
