How to find Multiple AlbumArtist tags

How can I find any file that has more than one Albumartist tag? I’m confident there’s a way, but searching this forum, and playing around in the docs, didn’t lead to any enlightenment.

Based on the feedback from my Export question the other day, especially @ohrenkino’s suggestion to use AlbumArtist instead of Artist (which I never even knew existed!), I have been going thru all 30,000 files, cleaning up (and in most cases, creating) the Albumartist field. Thank goodness for Mp3tag’s ability to tag multiple files at a time, and to do Tag>Tag conversions.

But in doing it, I discovered some files have multiple Albumartist entries. So I want to make sure I find those, and clean them up, as that’s the field I’m going to use as a “relation key” field in my Access DB.

Thanks.

Try the
Filter: "$meta(albumartist,1)" PRESENT

Thanks, that did it.