Music has lost all songs except downloaded ones
The Music app launches just fine, but it does not list any of the songs in my music library other than downloaded ones. The downloaded ones are listed, but the cloud icon is next to all of them, i.e. Music does not recognize that these songs are already on my hard drive.
In addition, all of my playlists are also missing.
Has some sort of master list been deleted or corrupted? I back up my iMac every night, so I could restore a missing file if I knew what to look for.
iMac 21.5″, macOS 10.15