In this paper, firstly, while it is dealt with the relation of Nietzsche’s idea of art and idea of truth, particularly, it is mentioned the relation between his ideas about music and truth. In this context, for exposing Nietzsche’s views, it is examined Wagner’s and Shopenhauer’s opinions about art and music which are Nietzsche appliled them and their effects on Nietzsche’s opinions. Secondly, it is emphasized that Adorno’s opinions on art and truth and it is expressed his ideas on music. Finally, it is put forth the differences and the resemblances between Nietzsche’s and Adorno’s ideas of art and truth. And also it is emphasized the importance which they gave to the art and privilege to the music.