Let me add a little to what I said above:
In order to "reorganize" into Top Level folders, I have to physically create those folders and then move my music into them. This means my playlists will all need to be edited to reflect the new path. This goes beyond being a major inconvenience.
Let me make it perfectly clear what I am talking about. Currently, I have my music organized in folders like this:
D:\My Music
Artist 1
Album 1
Album 2
Artist 2
Album 1
Album 2
etc.
My playlists rely on this structure to find the music in them. For example, I might have a line like this in a playlist file:
D:\My Music\Artist 1\Album 1\Song Title 1.mp3
What you're suggesting I do is change the structure, so I have something like:
D:\My Music
Category 1
Artist 1
Album 1
Album 2
Artist 2
Album 1
Album 2
Category 2
Artist 3
Album 1
Album 2
etc.
It's easy to see this breaks the playlist. D:\My Music\Artist 1\Album 1\Song Title 1.mp3 no longer exists, it's now D:\My Music\Cateogry 1\Artist 1\Album 1\Song Title 1.mp3 So every line in every playlist needs to be changed to reflect the new structure.
I know I don't have the largest collection of songs on my hard drive, but it's going to be an immense task for me to make this work.