Apple Music – Sync Library across devices without syncing old library

Hi!

I was a long time Spotify user, but just moved over to Apple Music (wanted lossless and HomePod support).

Now I would like to be able to sync Apple Music library/playlists across devices, just like I did in Spotify.

But the thing is, on my Mac, I have a large library of ripped CDs (going way back from the iTunes era) that I don't want to sync, I just want to leave it like it is.

So I created a new Music library that I would like to use just for the Apple Music stuff, hoping that I could choose to sync only this library from the Mac, but leave my old "ripped CDs library" unsynced and separated.

I was hoping that the Music settings in the different libraries were independent of one another, but that doesn't seem to be the case. I tried testing this by changing some of the settings in the new library I made, but then unfortunately the same changes appeared in the old one.

So now I'm afraid (and assuming) that if I turn on Sync Library in my new "Apple Music library", it will also start to sync my old "ripped CDs library".

Can anyone confirm if this is the case?

Thanks in advance!