Importing Music Video File into Apple Music

This use to be a whole lot simple! I have lots of music video files and would like to add the to Apple Music. In the past, when iTunes was one big app, this was as easy as changing the video type. Now I can add the music video files to Apple Movies but not to Apple Music. I have a thousand plus music video already on Apple Music, how do I add new music video files and have the accessible through Music?