Add Folders with "wild charts"

[kwonline1]

Hello,
I have a very big Music-Library and I sorted it like this:

e:\Music\A\ABBA\xyz.mp3
e:\Music\A\Avril Lavigne\xyz.mp3
e:\Music\B\B52\xxx.mp3
e:\Music\B\Boney M\xyz.mp3
...
e:\Music\Z\ZZ Top\sdsd.mp3

Now I would like to add a the Folder like this

e:\Music\?\

I would appreciate something like a wild chart

e:\Music\Z\ZZ Top\sdsd.mp3
..............^
...............|
........Wild chart

Is this possible?

Thank you