iTunes artwork munched
Made the mistake of "To retrieve album artwork from the iTunes Store for your entire library, choose File > Library > Get Album Artwork."
Now various albums have completely unrelated artwork. For example, my Billboard Top Hits album (Various Artists) has a movie poster from Twilight.
Where is the art actually stored on the mp3's? How can I get back my art that was originally there?
iTunes 12.9.5.5