Watching Music in Ji Zha describes Ji Zha's mission to Lu, who performed the music and dance of the Zhou royal family for him. Ji Zha Viewing Music is selected from Chunqiu Zuozhuan. It contains many factors of literary criticism. Although Ji Zha was commenting on Zhou Le, he was actually commenting on Poetry, because Poetry was enjoyable at that time. Ma Ruichen said: "There are 3 poems, and there is no one who can't enjoy it. ……… Zuo Zhuan: Wu Ji Zha, please visit Zhou Le, so that the workers can sing the song of Nan Zhou, call South, and visit twelve countries. Without music, the poems of the Fourteen Kingdoms could not be unified with Zhou Le. "Although the poems without music may have lost the effect of sensation, and the dance in Zhou Lezhong can no longer be reproduced, after all, Zhou Le, who was commented by Ji Zha, can still see his main body in the Book of Songs. Therefore, some characteristics of traditional literary criticism can be summarized from Ji Zha's View of Zhou Le.

Ji Zha's music is not music in the general sense, but music played by a country on formal occasions (such as sacrificial ceremonies and alliance meetings). Even in modern times, the music played on this occasion represents the image and tolerance of a country.

Ji Zha (484 BC). During the Spring and Autumn Period, Wu people. Wu Wangshou dreams of having fewer children. Sealed in Yanling, called Yanling Jizi. Later, the state was sealed, saying that Yanzhou came to Jizi. Ji Zha, a man of the hour in the Spring and Autumn Period, was once called "the hole in the south season and the hole in the north" with Confucius, so that stories about the country, watching music and hanging swords have been passed down to this day.