Moreover, according to Xu Hong’s (c. 1580–1660) Xishan Qinkuang 谿山琴况 (c. 1640), the most influential treatise on the aesthetics of guqin (Chinese zither) music, the category of li (pretty, beautiful) is merely the 10th of the 24 aesthetic categories, and the top six were harmony, tranquillity, clarity, profundity, antiquity, subtlety. [38]