change itunes library name

Is there a way to undo a change in artist and album info in iTunes?
I accidentally selected a good chunk of my iTunes library and changed it all to the artist and album name of the album I actually was trying to change. 220 tracks are now mislabeled. Is there a way to undo this without having to go into it manually?
Unfortunately, no. Once you click OK, the changes are saved and there’s no undo function.
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