iCloud Music library let local files disapear

Hi everyone:

I updated OS X to 10.10.4 today.

I don't use iCloud Music Library because i have huge amounts of musics stored locally. But after upgrading, iTunes automatically tuned iCloud music library without notifying me. I did not notice until 2h later, by the time some of my albums already uploaded. I turned off iCloud music library but only to find that the albums are not in local files. I could not find them!!!!

I really don't like this...

Can someone help me with this??!!

I'm so angry right now...

Thanks for all the help!

Really appreciate!!