Music points to non-music files for nearly all songs.
This problem started years ago, while using iTunes and keeping my music on a NAS drive. At one point, the library's paths to many songs became paths to image files and other kinds of files. This persists with Music 1.2.5.7 on Monterey 12.7. (TV is working better with video files.)
I ran a small test of using Finder to change the name of one of the files that Music is pointing to. Music found a different, non-music file to point to in its place.
For years, I have been maintaining my music by hand and using QuickTime Player to listen to them. Music's library is now so out of touch about my collection, I would like to wipe its knowledge about it. But I don't want to accidentally erase all the files it thinks are songs.
Mac Pro, macOS 12.7