WARNING: iCloud Music Library just destroyed my Mac's iTunes Library

People who have no backups have already made the mistake, that is their bad decision.

Backup, always.

I'm currently in the same place. It did mess up the artwork on my phone, but not in iTunes. There is a setting to turn off auto synching of playback information (Preferences>Store, then the check boxes at the bottom). I also have had "automatically download album artwork" (part of the check boxes) disabled for some time. I haven't noticed any tracks being deleted, but I also haven't had the chance to go through my library (nor would I really notice until I went to listen to a specific song).

Open iTunes select itunes from the pulldown menu then preferences and then remove the tick from iCloud Music Library

ALWAYS BACKUP your stuff on more than one backup drive, and store one of them in a bank safebox. NEVER, NEVER DEPEND on a cloud or third party backup service. They ALWAYS GET CORRUPTED OR FAIL. If you haven't learned this by now after this Apple Music fiasco, you never will.

I have just spent several hours restoring my iTunes library using Time Machine. Without it, my library that I have been customizing for years would have been a mess. Then I deleted all of my music from my 128 GB iPhone 6 Plus, and now I'm syncing all of it back to the phone from my iMac. Three cheers for backup drives!

I still like some of the features of Apple Music, but I will stick to managing my music library myself. If you have a high quality, customized music library, it's best not to let anyone else mess with it PERIOD! Just enjoy Apple Music without the iCloud part, and sync the music you want to carry with you from your Mac to your portable devices.

I am totally with you on this. I have a backup from this morning on an external drive. I have two problems - that I have panicked a bit and attempted a full restore which has just failed half way through (worried it's because I had File Vault encryption on), and even if I get my MacBook back to pre-Music app library, I'm not sure how to revert to an ok iPhone. Full restore from a backup (takes ages, lose health data), or just delete all music (keeping Music app, turning off iCloud library) and then resync? Main question I suppose is whether you can use iOS 8.4 on iPhone with pre-Music app iTunes on the MacBook?

I deleted my iPhone library by not checking the music sync in the settings in iTunes before I synced my iMac to the iPhone. There were a few songs left on the phone, but I deleted them in the phone settings. I synced my entire music library back to my phone, but that was not the end of it. My phone is disconnected from my computer, but it is still "repopulating " my music library on the phone. Explain that one! As I type, the number of songs in each Genre is slowly increasing to complete the process. That's a mystery to me. I just hope all of my songs will be there when this is over. What a nightmare! Never again will I knowingly allow a third party to tamper with my music library.

My Albums, My holiday clips (the ones u stream to Apple tv) ALL F***** GONE.

I mean for crying out loud I know I should have backups (and i dont) but is this for real?

johnnyrockedit. My library seems ok. I have not seen any mangling of the local iTunes library yet. for analyst purpose - I was/still am a itunes match customer, I did NOT join apple music (not my thing at all). I just wanted to continue with match using what I own as I have done for a few years. When I installed iTunes 12.2 I saw the iTunes cloud library was enabled/on by default but Apple music was not on. as at now I see no issues. That's not to say I won't do and as such I have all backed up. The only thing I worry about, if the new iTunes does the same as before, after a period of 7 days match always does an update on its own and sends info to apple and awaits a results delivery from apple. Unfortunately that always happened and will attempt to run every time one launches iTunes until it completes this. I wonder if new iTunes will do same in a few days and whether this cycle will be a catalyst for corruption. My gut feeling is no, my sense is that joining Apple music is the trigger as opposed to being a match only customer. It seems every problem reported is from users who have joined/trialled apple music

Didnt join either Apple Music or Match and the only thing I have left is the music I bought from Apple. total wipeout of everything else

My holiday/family clippppssss FFS

OK thank you. Scuppers that theory then. Guess I've been fortunate. Backup on standby just in case. Apple have let us down here, I hope they are taking this seriously. The glitches are getting reasonable coverage on various sites so hopefully they will address it

Hey, thanks so much for your help/response/post!!! I'm currently on HOLD with Apple Support.. have a feeling I'm just going to hang up on them, they don't understand the extent of my problem...

I want to ask you, will this fix the issue in Apple Music on my iOS devices as well? Accepting iCloud Music Library on my desktop just jacked up my Apple Music Playlists EVERYWHERE!!!!! :-(

They better get their act together, I've been a premium user with Spotify for over 2 years and I've never had my Playlists corrupted. iTunes is the death of Apple!

How are they going to address having deleted clips of a lot of my families events? Its not a glitch that is recoverable its a Forever Wipeout

Is it gone from your library and the local storage spot? Check your folders. I'm curious if it's still intact but apple just isn't reading it. as of now, apple isn't recognizing a fourth of my library's album art (Minor but still hours of work)

All seems normal now after restoring my iTunes library with a backup through Time Machine, deleting music from all portables and then resyncing them. At least it looks that way. Only playing a lot of music will tell. I mean isn't that why we use all this stuff anyway....to hear all the music we love the way we want it and when? I don't know about everyone else, but I'm tired of spending all this time dealing with tech issues. I'm here to listen to and discover music!!!!! I'll keep ya posted.

Johnnyrockedit

Good lord I was having a meltdown, everything seems to be there in the folders as you so suggested. Itunes is simply not recognising any of my albums or home movies. Why didnt I do this sooner 😕

verifying and Backing up now...!

Tks