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

iTunes library when you turn on iCloud Music show me duplicity. For speedy deletion I marked the whole album and I deleted the downloaded songs (Remove Download) and iTunes have deleted my original songs - without any warning. I can not find the original restore files ...

yeah that's what i meant with delete all the music that pops up. I meant the music thats in the cloud. It is needed to get a empty music library in iCloud

Same here, turned 'iCloud Music Library off', restored my iTunes library from my Time Machine backup, and on my Mac everything is in good order again.

After fixing the iTunes part on my Mac, I synched my music to my iPad and iPhone 6 (both with the latest iOS 8.4 version). There I still have issues where mainly the pictures of the artists or completely mixed up.

I don't dare to turn 'ICloud Music Library' on, when I did that initially i completely screwed both Album Art, titles of the tracks, broke albums up in multiple albums. It was really a mess.

Yeah to recitfy the issue I restored my mac from Time Machine.

Went into my iPhone settings and deleted all music from there and then synced with iTunes via USB with iCloud Music turned off.

Everything seems to be back to normal no issues but still annoyed I can't use Apple Music properly.

Is iCloud Music Library on by default when you update to iTunes 12.2? It was on by default for my iOS devices but I overlooked checking this on iTunes earlier - I will be checking for this later when I get home. I was using traditional iTunes match prior to the update so maybe it would be on by default. It's making me nervous to look at my iTunes later, I didn't notice anything was amiss. It does make me wonder whether I am dodging the issue because I have avoided joining apple music and just sticking with match. I notice most of the reports are coming from people with Macs. On the windows forum here for apple music I cannot see similar reports. Doubtful but perhaps this is significant.

No If I remember correctly you ahd to turn it on. It prompts you when you first attempt to add something to your library from Apple Music.

It didn't happen instantly but once I tunred it on on both my phone and mac I notice my phone straight away because it reloads your library and it instantly looked wrong then onc ei looked at my mac I could see signs that was going the same way.

It happened to me only after I enabled iCloud Music Library on iTunes on my Mac, then the corrupt data synced across to iPhone via iCloud.

Looks like iTunes and iCloud can't handle the data correctly and corrupts, the "Merging" of data really should be labeled "Random Screwing Up"

I'd check your trash for any deleted songs. Gosh this is a mess.

I had a backup of my library so it's fine. I decided to try to set up a new iTunes library and use just Apple Music & iCloud Music Library. And I'm gonna go out on a limb here and say that it works *really* well. Everything syncs in seconds from my mac to my iPhone. I have not tested adding albums to this library from my old one yet. It might work really easily. It might not. I think the big issue is iTunes Match, which has always been horrible. So essentially, Apple Music works great (besides the UX problems. It needs a lot of work to be consistent across the whole design. It's like they kept half the old interface and added a new interface for parts of Apple Music.) They just did a sucky job integrating it with our previous iTunes experiences.

i have iTunes Match and have switched on Apple music as well...the problem I have is that my three devices (iPhone, iPad and macbook) are all now operating in isolation. Libraries are fine on all three and music is playing/streaming ok...but any changes I make to playlists or adding music dont feed through to the other two devices. How did you manage to get your devices syncing so well? Do I need to switch match off, and if so how do I do it?

Thank you for this! So annoying that Apple can't get it together with iTunes stuff. I was thinking about joining iTunes Match again but after this debacle I won't be.

Yes, I had this issue and then restored my library from a Time Machine backup. I am disappointed that the iCloud Music Library doesn't work as smoothly as I expected it to. It seems like it's just a renamed failed iTunes Match.

I hope that Apple comes up with a fix to this issue as this was one of the primary things I looked forward to with Apple Music.

I've only just managed to register with Apple Music a couple of hours ago through iTunes (as the iTunes Windows version came out really late last night UK time and I don't have a compatible iDevice).  I'd already read about people's problems with artwork and knew not to turn iCloud on - it didn't ask me to!  It came up with a message on the right saying it was uploading to iCloud or something.  I panicked and turned it off in Preferences.  Thank goodness I did!

It's so ridiculous that they have had zero consideration for people who have spent years maintaining a tidy Library and think nobody would care if they started replacing tags and artwork.  And that nowhere on the website or on iTunes does it explain exactly how iCloud works.  It just does whatever it does without asking!!

I'm annoyed because the main reason I was willing to give Apple Music a try over Spotify was that it seemed like it was going to be easy to integrate streaming songs with my library.  I didn't want it to touch my existing library - I just wanted to be able to add songs to it.  It ought to give you this option.

I do understand that if you wanted to stream all of your library rather than storing it on your iPhone, rather than it allowing you to upload your whole library with all your tags and artwork in tact, it swaps it with a version already available - but I don't understand why it seems to swap it when the original file is available on the hard drive.

Hope they sort it out or I'm probably never going to be able to happily switch to a streaming service.

I second that

THANK YOU! You're a life savior!

Also, from a YouTube clip I saw of how Apple Match works, my understanding was that when it matches your library, that doesn't automatically replace matched songs with the iTunes Store version - it only does it if you delete the song from iTunes, and then tell it to replace it.  So it's weird that the iCloud thing does do it automatically.