(223-263) was a writer, thinker and musician at the end of Wei Dynasty, and one of the representatives of metaphysics in Wei and Jin Dynasties. He is good at melody, and his works include long Qing, short Qing, long edge and short edge, etc., which are collectively called "Four Seasons Square" and "Nine Square" with Cai's five squares in the Eastern Han Dynasty. The allusion of "The Sound of Guangling" left by him was passed down as a much-told story by later generations, and Guangling III became one of the top ten guqin songs. Literary creation is mainly poetry and prose. There are now more than 50 poems, most of which are four-character poems, accounting for more than half. Prose "Sound without Sorrow and Music", "Breaking Up with the Mountain Residence", "Fu Qin" and "Keeping Healthy" are masterpieces handed down from generation to generation. Sui Shu Jing Ji Zhi records 13 volume, which has been lost, with only 10 volume left; Ming people carved "San Ji in Jizhong"; Ji Jikang edited by Lu Xun was included in The Complete Works of Lu Xun.