# Tag - Tag messed up with fieldname with extra % characters! **URL:** \ **Category:** Support\ **Created:** [March 11, 2023, 4:00pm UTC](https://community.mp3tag.de/t/tag-tag-messed-up-with-fieldname-with-extra-characters/60333 "2023-03-11T16:00:19Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![VojtaNesvadba](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/v/c2a13f/32.png) [@VojtaNesvadba](https://community.mp3tag.de/u/VojtaNesvadba)\ **Post date:** [March 11, 2023, 4:00pm UTC](https://community.mp3tag.de/t/tag-tag-messed-up-with-fieldname-with-extra-characters/60333/1 "2023-03-11T16:00:19Z")
So, I needed to convert AlbumArtist tag to Composer tag. I used Tag - Tag function and everything came alright. The problem is I types %COMPOSER% which mp3tag recognizes as different and nonexisting tag so it won't let me use Tag - Tag again for used %COMPOSER% tag, I can do it manually for every file when I edit the tag through Alt+T but I got 350 files edited in this way. What can I do to again use bulk? ---
**Author:** ![ohrenkino](https://community.mp3tag.de/user_avatar/community.mp3tag.de/ohrenkino/32/4843_2.png) [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)\ **Post date:** [March 11, 2023, 4:02pm UTC](https://community.mp3tag.de/t/tag-tag-messed-up-with-fieldname-with-extra-characters/60333/2 "2023-03-11T16:02:11Z")
Where did you type > [@VojtaNesvadba](#): > > %COMPOSER% ? A screenshot would clarify that. ---
**Author:** ![VojtaNesvadba](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/v/c2a13f/32.png) [@VojtaNesvadba](https://community.mp3tag.de/u/VojtaNesvadba)\ **Post date:** [March 11, 2023, 4:03pm UTC](https://community.mp3tag.de/t/tag-tag-messed-up-with-fieldname-with-extra-characters/60333/3 "2023-03-11T16:03:47Z")
![image](https://community.mp3tag.de/uploads/default/original/2X/0/09abb89b4f3c6fe114faf4422834a00245c12dbc.png) And now I cannot revert it, even in preview is shows me the %COMPOSER% tag, but everytime I want it to convert to anything else, it shows me blank... ![image](https://community.mp3tag.de/uploads/default/original/2X/5/540a313f9bb03c9aa4dbcc8579fbef109a91d371.png) ---
**Author:** ![LyricsLover](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/l/c6cbf5/32.png) [@LyricsLover](https://community.mp3tag.de/u/LyricsLover)\ **Post date:** [March 11, 2023, 4:38pm UTC](https://community.mp3tag.de/t/tag-tag-messed-up-with-fieldname-with-extra-characters/60333/4 "2023-03-11T16:38:37Z")
Please add a 3rd screenshot from Alt+T from one of this tracks. We need to see what kind of tags are still available in your adjusted tracks. ---
**Author:** ![VojtaNesvadba](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/v/c2a13f/32.png) [@VojtaNesvadba](https://community.mp3tag.de/u/VojtaNesvadba)\ **Post date:** [March 11, 2023, 4:39pm UTC](https://community.mp3tag.de/t/tag-tag-messed-up-with-fieldname-with-extra-characters/60333/5 "2023-03-11T16:39:38Z")
![image](https://community.mp3tag.de/uploads/default/original/2X/4/40dab52ed3ccf93c741e213b10dc53c3c957b47d.png) Comparing to manually re-edited ![image](https://community.mp3tag.de/uploads/default/original/2X/9/97c208ba4b2d8b214b4869d1e1f1e9773eac4652.png) ---
**Author:** ![LyricsLover](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/l/c6cbf5/32.png) [@LyricsLover](https://community.mp3tag.de/u/LyricsLover)\ **Post date:** [March 11, 2023, 4:41pm UTC](https://community.mp3tag.de/t/tag-tag-messed-up-with-fieldname-with-extra-characters/60333/6 "2023-03-11T16:41:34Z")
You added the content from %ALBUMARTIST% (correct syntax) to %COMPOSER% (wrong syntax). You should have choosed COMPOSER without the percent characters (as you would see it in the list pressing the arrow right-button on the right side). ---
**Author:** ![VojtaNesvadba](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/v/c2a13f/32.png) [@VojtaNesvadba](https://community.mp3tag.de/u/VojtaNesvadba)\ **Post date:** [March 11, 2023, 4:43pm UTC](https://community.mp3tag.de/t/tag-tag-messed-up-with-fieldname-with-extra-characters/60333/7 "2023-03-11T16:43:10Z")
I know I SHOULD HAVE, but the thing happened and I'd like to correct it and I didn't see a solution by myself, so I am asking here. ---
**Author:** ![LyricsLover](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/l/c6cbf5/32.png) [@LyricsLover](https://community.mp3tag.de/u/LyricsLover)\ **Post date:** [March 11, 2023, 4:43pm UTC](https://community.mp3tag.de/t/tag-tag-messed-up-with-fieldname-with-extra-characters/60333/8 "2023-03-11T16:43:22Z")
You can try to choose `%%COMPOSER%%` as Format String and copy this content to ALBUMARTIST (without any percentage characters): ![image](https://community.mp3tag.de/uploads/default/original/2X/d/d0b1ea96ead337698d3e309fcc629d52105ab22c.png) Or if you want to have it as COMPOSER choose `COMPOSER` as Field. ---
**Author:** ![VojtaNesvadba](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/v/c2a13f/32.png) [@VojtaNesvadba](https://community.mp3tag.de/u/VojtaNesvadba)\ **Post date:** [March 11, 2023, 4:45pm UTC](https://community.mp3tag.de/t/tag-tag-messed-up-with-fieldname-with-extra-characters/60333/9 "2023-03-11T16:45:25Z")
But why? It will return this ![image](https://community.mp3tag.de/uploads/default/original/2X/7/7e3f5ed7a869d6e2c791e49c94642f81beedb93a.png) ---
**Author:** ![LyricsLover](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/l/c6cbf5/32.png) [@LyricsLover](https://community.mp3tag.de/u/LyricsLover)\ **Post date:** [March 11, 2023, 4:45pm UTC](https://community.mp3tag.de/t/tag-tag-messed-up-with-fieldname-with-extra-characters/60333/10 "2023-03-11T16:45:59Z")
Please try it on 1 of your tracks (ignoring the Preview). Does it work for you? ---
**Author:** ![VojtaNesvadba](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/v/c2a13f/32.png) [@VojtaNesvadba](https://community.mp3tag.de/u/VojtaNesvadba)\ **Post date:** [March 11, 2023, 4:46pm UTC](https://community.mp3tag.de/t/tag-tag-messed-up-with-fieldname-with-extra-characters/60333/11 "2023-03-11T16:46:39Z")
It does not. ![image](https://community.mp3tag.de/uploads/default/original/2X/4/45b887a9629b6592013fa292d78bdc3da6eaa022.png) ---
**Author:** ![LyricsLover](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/l/c6cbf5/32.png) [@LyricsLover](https://community.mp3tag.de/u/LyricsLover)\ **Post date:** [March 11, 2023, 4:47pm UTC](https://community.mp3tag.de/t/tag-tag-messed-up-with-fieldname-with-extra-characters/60333/12 "2023-03-11T16:47:32Z")
Please show us again Alt+T from this one test track after pressing OK for the above Format string. ---
**Author:** ![VojtaNesvadba](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/v/c2a13f/32.png) [@VojtaNesvadba](https://community.mp3tag.de/u/VojtaNesvadba)\ **Post date:** [March 11, 2023, 4:48pm UTC](https://community.mp3tag.de/t/tag-tag-messed-up-with-fieldname-with-extra-characters/60333/13 "2023-03-11T16:48:39Z")
![image](https://community.mp3tag.de/uploads/default/original/2X/a/a0f52fa18947f22785d72e69c93b5e1245b617d3.png) ---
**Author:** ![LyricsLover](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/l/c6cbf5/32.png) [@LyricsLover](https://community.mp3tag.de/u/LyricsLover)\ **Post date:** [March 11, 2023, 4:49pm UTC](https://community.mp3tag.de/t/tag-tag-messed-up-with-fieldname-with-extra-characters/60333/14 "2023-03-11T16:49:40Z")
What version of Mp3tag are you using? (Help -\> About Mp3tag). I ask, because in my Mp3tag v3.19b this works for a test track. ---
**Author:** ![VojtaNesvadba](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/v/c2a13f/32.png) [@VojtaNesvadba](https://community.mp3tag.de/u/VojtaNesvadba)\ **Post date:** [March 11, 2023, 4:50pm UTC](https://community.mp3tag.de/t/tag-tag-messed-up-with-fieldname-with-extra-characters/60333/15 "2023-03-11T16:50:13Z")
3.19b, I updated it today. ![image](https://community.mp3tag.de/uploads/default/original/2X/c/c25826e27062bf196aae9147b1ae02c4402ec1ac.png) ---
**Author:** ![LyricsLover](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/l/c6cbf5/32.png) [@LyricsLover](https://community.mp3tag.de/u/LyricsLover)\ **Post date:** [March 11, 2023, 4:54pm UTC](https://community.mp3tag.de/t/tag-tag-messed-up-with-fieldname-with-extra-characters/60333/16 "2023-03-11T16:54:16Z")
That's strange. I try to reproduce here with your data. Just a moment... ---
**Author:** ![LyricsLover](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/l/c6cbf5/32.png) [@LyricsLover](https://community.mp3tag.de/u/LyricsLover)\ **Post date:** [March 11, 2023, 5:18pm UTC](https://community.mp3tag.de/t/tag-tag-messed-up-with-fieldname-with-extra-characters/60333/17 "2023-03-11T17:18:47Z")
I can't get it work anymore 🤔 😒 _(I'm 100% sure that I saw a working example before I wrote my answer... 😳)_ Whatever I try (Tag -\> Tag, Alt + T, Export & Import, the %-Sign with and without quotes, double quotes, backslash) it does not seem to copy the content `2Pac;Mouse Men;Mopreme` from `%COMPOSER%` into any other tag field. Maybe @Florian or @ohrenkino knows a trick for this situation? ---
**Author:** ![Florian](https://community.mp3tag.de/user_avatar/community.mp3tag.de/florian/32/5759_2.png) [@Florian](https://community.mp3tag.de/u/Florian)\ **Post date:** [March 11, 2023, 5:20pm UTC](https://community.mp3tag.de/t/tag-tag-messed-up-with-fieldname-with-extra-characters/60333/18 "2023-03-11T17:20:38Z")
You can try `$meta(%%COMPOSER%%)` as format string. ---
**Author:** ![VojtaNesvadba](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/v/c2a13f/32.png) [@VojtaNesvadba](https://community.mp3tag.de/u/VojtaNesvadba)\ **Post date:** [March 11, 2023, 5:30pm UTC](https://community.mp3tag.de/t/tag-tag-messed-up-with-fieldname-with-extra-characters/60333/19 "2023-03-11T17:30:19Z")
> [@Florian](#): > > $meta(%%COMPOSER%%) Yes! This solved my problem. Thank you so much! ---
**Author:** ![system](https://community.mp3tag.de/uploads/default/original/2X/c/ce7035d426cb755a7916793326d23b465222a407.png) [@system](https://community.mp3tag.de/u/system)\ **Post date:** [April 10, 2023, 5:30pm UTC](https://community.mp3tag.de/t/tag-tag-messed-up-with-fieldname-with-extra-characters/60333/20 "2023-04-10T17:30:27Z")
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