Ji Kang
As a thinker, Ji Kang wrote on longevity, music theory, politics and ethics. Among his works were "Yangsheng Lun" (飬生論, Essay on Nourishing Life), "Shengwu Aile Lun" (聲無哀樂論, Discourse on sounds [as] lacking sorrow or joy, i.e. On the Absence of Sentiments in Music), "Qin Fu" (琴賦, A Composition on the Qin), and "Shisi Lun" (釋私論, Discourse on Individuality). As a musician, Ji Kang composed a number of solo pieces for the qin.