The contents are different and the functions are different.

In terms of content, music in self-media music is a way of expression from self-media, not the focus of self-media content. Music self-media is a category of self-media, and the content is mainly music.

In terms of function, self-media music is a kind of soundtrack, which mainly plays a supporting role. The music of music self-media is the focus, and other content including editing and pictures are auxiliary.