Need to Do Some Synching

If I did this "right," I would have 4 copies of my "Music_Shell" folder with the same number of files in each.
A: 139421
L: 139638 ← Source of Truth folder
O: 139667
P: 150011

There are 217 *fewer* files in the A:\Music_Shell folder than in the L:\Music_Shell folder.
There are 29 *more* files in the O:\Music_Shell folder than in the L:\Music_Shell folder.
There are 10,373 *more* files in the P:\Music_Shell folder than in the L:\Music_Shell folder.

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