Music library gone

So after all of that what seems to have worked was launching the Music app, then File/Import and selecting the music folder inside of iTunes Media....

Too easy. Wish I had tried that in the beginning.

Hope this helps someone else.

I'm still working thru this process....

Here is what did not work:

1. Holding down option key while starting the Music app. When I do this I get prompted to select a library to open, when I select the music inside of the iTunes Media it won't let me select all of the music.
2. When I delete the Music Library inside of the Music/Music folder and then try to launch the Music app holding down the option key I get the same result as above.
3. When I delete the Music Library inside of the Music/Music folder and double click the previous iTunes Library I get a library with one CD that I launched after this whole mess started when I manually went into my music files and played a single song.

Apple, if you are listening, this is incredibly frustrating! So much for user friendly products...

Now for the deeper dive into the info turingtest2 posted.

Fingers crossed....

Thanks. My library is not in there, not in Music/Music/Music Library.

All of my music is in Music/iTunes/iTunes Media/Music.

So it's all there, but it is no longer showing up with the new Music app that replaced iTunes on iOS Catalina.

Is there a setting I can adjust so the Music app displays my library that is in the iTunes Media folder?

Thanks for the help. I haven't tried this yet because I have been so frustrated with all of the problems the Catalina update has caused. I'm thinking Catalaina must translate as something like "nightmare" in some language...

Sorry for the rant. I will try out the remedies you guys suggested and let you know how it goes.

Thanks again to those that offered suggestions and to this community.

Note that it was fine in 10.15.1