The writter thinks that in these days many arguments with a political practice are proceed in two ways. One is a way that rational persons agree to consist of a rational and valid norm, the other is a way that people thoroughly raise a question about a democratic political practice by publicizing various distress of neglected people. The writter thinks that the method of a political practice in Adorno's thought is belong to the latter. Because doubting that a perform of a rational performer is really rational, Adorno is accusing such a rationality of a kind of instrument for self-preservation. And it is because that Adorno thinks relieving a ability of mimesis which is able to empathize with distress of neglected people is a better practical method mitigating a desire of self-preservation. And it is because that the writter thinks the priority of object in the concept of Adorno's mimesis is probably a better effective practical method to publicize the various distress of neglected people. This paper is written to specify such a theme. Therefor this paper will proceed as follows. First, it will raise a question about performances of rational performers through the disputes of Adorno-Marcuse on the German Student Movement and Adorno's sociological books. Secondly, analyzing Adorno's aesthetics of music, it will show that the priority of object in the concept of Adorno's mimesis is useful in publicizing various distress of neglected people. And in this process writter will insist that making a habit of experiencing in the manner of mimesis is could be a method of a political practice in Adorno' thought. Finally, this paper will review such a Adorno's practical method with disputes of social justice these days.