[wyldfire]

I got those notices and in my case it was "only" dozens of CDs I backed up. I was so frustrated and disgusted that I had taken time to back them up to Google Music that I just let them go. I still have the CDs, hopefully they are still in good enough condition to be backed up again.

[Zathman]

YouTube Music was really rough in the beginning, and while I still have some UI nitpicks, I've come to find its radio algorithm to be much superior than Google Music's ever was for finding enjoyably obscure tracks. The tracks I uploaded to Google Music and transferred to YouTube Music are still playable through YouTube Music and downloadable from Google Takeout. If you migrated your library to YouTube Music, you may yet be able to download them from https://takeout.google.com (YouTube and YouTube Music).