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

I had the same problem and I just sort it out.

Here is how I did it:

1, Go to Music setting in iPhone, turn off iCloud Music Library;

2, (if your iPhone is connected to Mac/PC), disconnect iPhone, and turn off iTunes on your Mac/PC;

3, Restart iTunes, and connect iPhone with Mac/PC;

4, Drag music to iPhone from iTunes.

I hope it helps.

Cheers!

How can i go back to my old itune. I dont like nothing about this new update or whatever it is.

If, after restore, I end up with a) a working, pre-Apple Music iTunes library on my MacBook, and b) a screwed up Apple Music app on my iPhone (with ratings of 1100 purchased songs missing), should I just be able to connect my iPhone and restore from a pre-Apple Music backup? Or will the screwed up iPhone overwrite my rescued iTunes library (even if I have auto sync off)?

OK. In order to help Apple help us we need to be able to show the root cause. Please start disclosing whether or nor you use cloud and or signed up for Apple music (three months free or not) versus storing everything locally. I've been working with an analyst and this information will help them create a fix as this is impacting tons of users.

Im playing with the idea of reinstalling iTunes and readding my library. Meh?

I am signed up to the three month individual trial. I did have cloud library enabled but have now turned it off. My issue, as far as I can tell, is limited to losing ratings info from all purchased items (which therefore removed them from some playlists, adds them to others).

Jon Sutton,

yes, it will correct your messed up one to be in line with the correct one. You have to make sure iCloud music library is off before resyncing, however. And always make a backup of the library.

this (for the most part) doesn't happen without iCloud music library being enabled, which can only be done with the trial.

Thing is, aside from being time consuming, a complete iPhone restore from backup has other side effects, e.g. I lose all health data because the backups aren't encrypted. So if I get my iTunes library back, what if I just leave my iPhone messed up until they release on iOS 8.4 update which claims to fix iCloud music library issues? Might syncing at that point be a better idea? Or now that it's messed up, is going back in time likely to be the only option?

I am signed up for the trial, iCloud Library is enabled.

My library and it's playlists are exactly the same as before I signed up and turned on. I like Apple Music.

Honestly speaking I believe Apple is well aware of the situation and I hope they are right now working on it. But I have a weird sense that they are just taking their weekends off now as new Apple victims every minute installing and turning icloud sync on watching their libraries being destroyed in front of their very eyes.

The weirdest of all is Apple is not blocking the service or the updates, letting new people getting their libraries destroyed which at least half of them probably don't have any backups at all. Fiasco over fiasco

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?