Absolute beginner question about albums

I just learned about DMM yesterday and have been exploring and trying to figure it all out.

I noticed the "Music" tab which displays a bunch of albums under "Your Library". Most definitely not my library because I've never heard of a majority of them.

Where is it sourcing these albums from for them to show up in my library? The albums that are sitting on my Debrid account are not listed in this library. I've not used my Debrid account for anything other than streaming through Stremio and downloading a couple of torrents, so I'm pretty inexperienced in the wider range of how it can be used.