《性自命出》是一篇专门的儒家心、性、情论作,但文中插入了两段谈乐的文字。对比《乐记》可知,在儒家思想里,乐论与心、性、情论的关系密不可分,心、性、情论是乐论的思想理论基础;唯其如此,乐对人的心性又有着其他任何事物所不能替代或者不及的深远影响,这既是《性自命出》论乐的根本目的所在,同时也表明其著者是一位深通乐理的儒者。本文兹从以下三个方面,结合传世文献(以《乐记》为主),对《性自命出》中的乐论进行探讨。 “Sexual self-esteem” is a special Confucianism, sex, love story, but the text inserted two paragraphs of music. Compared with “Yue Ji”, we can see that in Confucianism, the relationship between music theory and heart, sex and emotion is inseparable. Heart, sex and emotion are the ideological and theoretical basis of music theory. Only in this way, There are other things that can not be replaced by or far-reaching influence, which is not only “sexual self-nomination” of the fundamental purpose of music, but also shows that the author is a deep-seated Confucian. This article from the following three aspects, combined with the handed down from the literature (with “music” as the main), the “sexual self-nomination” in the music is discussed.