Can't switch music libraries

Like iTunes before it Music will usually open the last library successfully opened unless you hold down option as you launch the app, and then choose or select a different library. Moving the library to the desktop or the trash doesn't prevent this as a Mac will attempt to reconnect to content moved or renamed within a volume. See Move your iTunes/Music library to a new computer - Apple Community for more if needed.

tt2

Douglas Henwood wrote:

I did use the option key before opening.

Do you get the option to choose or create a library? If not try holding option as or even just before tapping on the Music icon? If you do try holding down option+cmd first which opens Music in its safe mode, then hold Option immediately after acknowledging the safe mode prompt. You might also try rebooting the computer without reopening windows before trying once more, in case the issue here is that Music isn't really closing out properly, so still reopens with the previous library.

tt2