Music library completely wrecked
I'm on the Apple Music free trial, which I'm using on my iPhone with no issues. After the latest iTunes update, which I thought was supposed to resolve the errors that had happened with people's music libraries, I turned on iTunes in the Cloud on my iMac so that I could share my playlists across devices.
My music library is now completely disorganized. For example, my Black Keys albums now have songs by Etta James and Anita O'Day (a jazz singer)(and others--it's totally random). "American Beauty" by the Grateful Dead is now largely Pavorotti, for some reason. It is like this throughout my music collection on my computer, which now basically unusable.
I previously had iTunes Match and had similar issues, although not as pervasive, so I cancelled it and did some work restoring most of my collection. This was a year ago or so. I do not have Match now, but it seems as though the cloud service, for whatever reason, has rewritten my music library randomly.
Does anyone know if there is an easy fix for this? I have Time Machine and a third-party cloud backup, but it will take hours to restore from backup--is there anything faster? Also, how do you turn off this cloud music thing once you've turned it on?
Thanks for any help,
Steve
iMac, OS X Mountain Lion (10.8.5)