I have a big collection of rare stuff and live recordings in my iTunes library and I am very anal about my tagging, cover art etc. I would love to use Apple Music in my whole macOS/iOS ecosystem, but I am simply too afraid with all the bad experiences about changed cover art, replaced songs with different versions and even deleted music files on the local iTunes library. (Even tried it once, after seeing a lot of totally wrong cover art I turned Apple Music off again as quickly as possible to prevent permanent damage.) I have a backup of my iTunes library, of course, but with a big music collection, this won't help me too much if I discover years from now that Apple Music did delete mp3s and/or messed up my meta data locally on my iMac. Is it finally safe to use the iCloud Music library with Apple Music without the service daring to touch my iTunes library "physically" and renaming/replacing/deleting songs permanently even after turning of Apple Music again? Thanks in advance for the input, really appreciated!