iTunes music file location
Trying to understand the file structure for iTunes files, the music I've uploaded seems to be scattered everywhere in the /user/Music/iTunes folder. Some seem to be there under artist names, others under a folder called /user/Music.iTunes/iTunes Media/Music, also under artist names, then some seem to be under /user/Music.iTunes/iTunes Media/Music/Compilations.
Anyone know the reasoning for this, seeming, convoluted structure?
Is there any reason why I shouldn't relocate all of them under /user/Music/iTunes to keep everything in one place?
The reason I'm asking is because I have other devices that cannot be connected to the computer (ex: car audio system), it would be a lot easier to copy things over if I can get them in a more logical organization.
MacBook Pro 13", macOS 10.13