Explorer has this feature of showing more than what's on the hard drive or links.
You proved there is only one folder on the drive with the music but let's see if anyone has written how to stop Explorer from showing symbolic links.
Now you know about libraries and how to manage them.
I have windows 7 OS. I have recently encountered a strange problem. Recently I have discovered that my "music" folder from my libraries seems to be in both my "library" file (where it should be,) and my "picture" folders file???!! How did that happen? Perhaps I dragged it there without realizing it. The problem is when I try to delete it from my "picture" folder, it seems to delete the music from my pc completely. Obviously, I only want one "music" file -- no interaction with my picture file...