Catalina Apple Music doesn't play previous iTunes content, only an Apple Music copy if it exists?
I understood that in Catalina the big change with iTunes is breaking up into multiple apps. But if I'm understanding how this REALLY works, there's just the implementation of the Apple Music app and all of the functionality to play your existing music content is gone...unless you want to hunt through a Finder directory to locate a song and play it in the finder or a third party app. It appears you can no longer play your music that you previously ripped from your CD collection - unless there happens to be a copy of that song in Apple Music. I have hundreds of songs that don't exist in Apple Music and now it appears they are lost unless I happen to know a particular song and go search for it. There's no way to know what songs are now missing.
Am I understanding this correctly? If so, this is horrible.