"Loading Music Library..." happens every time I open Music app and locks up (must Force Quit), since Big Sur update in May
Every time I open Music I consistently get a "Loading Music Library..." window which stays up infinitely until I Force Quit the Music app, rendering Music on my Mac virtually unusable. This began after an update to macOS Big Sur in May 2021 and has been happening consistently since. I just upgraded to Monterey 12.1 and same problem. I have iCloud Match so all my music is in the cloud and accessible from all my iOS devices so at least I have not lost my music elsewhere. I was able to get it working under some Safe Mode operations in July so I know my library was sound at one point, but since then I can't get past this "Loading" window. So the Music Library on my Mac now seems screwed up, likely some sort of semaphore confusion. I have had a case open with Apple since May and it went to a Senior Advisor and almost to Engineering but stalled in July and Apple is now unresponsive. I've sent them packet traces, disk images, crash diagnostics but I cannot simply contact Apple and have them resume the case where we left off. Instead I must on every occasion go through an excruciating exercise of elementary steps which take hours and lead nowhere so I've run out of patience with Apple Support.
A few questions, regarding a virgin Mac and starting the Music app for the first time ever, with no previous media files (iTunes or otherwise) and obviously a brand new Music Library:
a) What is the default location of the Music Library?
b) What is the default location of the physical music files (formerly Users > [user] > Music > iTunes > iTunes Media > Music> [artist folders])?
Help!
MacBook Pro (2020 and later)