iTunes/Music transfer from external hard drive to iMac
I have a backup of my iTunes/Music folder on an external hard drive, and I'm trying to get it back on my iMac hard drive, which has an empty Music folder. I made the backup after iTunes was replaced by Music No matter what I do, I cannot get it to work when I transfer the songs back. I get error 13010 or "cannot save " or "you must choose a library" or "cannot locate" message., etc. etc. Any advice?
iMac 27″, macOS 10.14