In the history of the development of Chinese music, the most representative work on music aesthetics in the Wei and Jin Dynasties is Ji Kang's "On Soundless Sad Music". The article discusses music in the form of two people asking each other questions. The objective social significance, psychological attributes, etc., and the thoughts and opinions are rigorous and meticulous. Another important article is Ruan Ji's "Music Theory" and Ji Kang's "Qin Fu".