# Flac tags, missing and/or duplicate tags
**URL:** https://community.mp3tag.de/t/flac-tags-missing-and-or-duplicate-tags/62817
**Category:** Support
**Created:** [November 20, 2023, 7:39pm UTC](https://community.mp3tag.de/t/flac-tags-missing-and-or-duplicate-tags/62817 "2023-11-20T19:39:01Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@hovgaard](https://community.mp3tag.de/u/hovgaard)
#### Post date: [November 20, 2023, 7:39pm UTC](https://community.mp3tag.de/t/flac-tags-missing-and-or-duplicate-tags/62817/1 "2023-11-20T19:39:01Z")
In some FLAC files the field 'Album artist' is empty, but when I look onto the tags with another tag editor (MusicBrainz) I see there is data in a tag names 'album artist' (note the lower case first letter). Some files have both 'Album artist' and 'album artist' and it looks like mp3tag only handle the one with uppercase first letter. Are I am missing something here ?
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### Author:  [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [November 20, 2023, 7:46pm UTC](https://community.mp3tag.de/t/flac-tags-missing-and-or-duplicate-tags/62817/2 "2023-11-20T19:46:43Z")
What does the extended tags dialogue Alt-T show?
The tag field should be called ALBUMARTIST in MP3tag.
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### Author:  [@hovgaard](https://community.mp3tag.de/u/hovgaard)
#### Post date: [November 20, 2023, 8:10pm UTC](https://community.mp3tag.de/t/flac-tags-missing-and-or-duplicate-tags/62817/3 "2023-11-20T20:10:19Z")
Extended Tag Dialog shows the 'missing' field. Guess I have to 'play' with the 'Adjust visibilty of the columns' dialog ?
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### Author:  [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [November 20, 2023, 8:17pm UTC](https://community.mp3tag.de/t/flac-tags-missing-and-or-duplicate-tags/62817/4 "2023-11-20T20:17:57Z")
I would use a mapping to map ALBUM ARTIST to ALBUMARTIST.
See Options Ctrl-O Tags\>Mapping.
and see here:
> [@How to map ALBUMARTIST TO ALBUM ARTIST for flac files](https://community.mp3tag.de/t/how-to-map-albumartist-to-album-artist-for-flac-files/57969):
>
> Could someone please briefly walk me through how to create a mapping that will cause any edits I make to the ALBUMARTIST field in a FLAC file to also apply to the ALBUM ARTIST field? I'm having an issue with the way Media monkey is interpreting these tags and this seems the fastest way to fix the issue. Thanks.
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### Author:  [@system](https://community.mp3tag.de/u/system)
#### Post date: [December 20, 2023, 8:18pm UTC](https://community.mp3tag.de/t/flac-tags-missing-and-or-duplicate-tags/62817/5 "2023-12-20T20:18:50Z")
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