Mass copy of artist to album artist?

As far as I would think, Artist and Album Artist are basically the same thing. There isnt a way, that im aware of, to do all of your stuff at once, unless a script could be done to take the value of Artist and send it to Album Artist.
To change multiple items for the same artist, you can select all of the songs by that artist, Get Info and edit the multiple tracks to do it artist by artist.
Hope that helps some.

You don't really need it except perhaps on compilations.

I can feel your pain and there is plenty once the music library starts to bulk up. Now I am sitting at 148.6 GB in iTunes, a site I go to for dozens of scripts is found at:

http://www.dougscripts.com/itunes/index.php

Doug is the guy for scripts, he has a collection to save you from manually doing most everything. Snoop around there for a few minutes, you'll likely find what you are looking for and more. Just don't forget what you originally came in for, easy to get sidetracked.

Cheers, S.

Glad to point in the right direction. I have found 42 scripts of use so far. Looking again as it has been a few months and Doug has been busy. Up to 50 in a few minutes no doubt.....

S.