# retagging compilation albums
**URL:** https://community.mp3tag.de/t/retagging-compilation-albums/8183
**Category:** Support
**Created:** [April 1, 2009, 11:32am UTC](https://community.mp3tag.de/t/retagging-compilation-albums/8183 "2009-04-01T11:32:40Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@samfau2](https://community.mp3tag.de/u/samfau2)
#### Post date: [April 1, 2009, 11:32am UTC](https://community.mp3tag.de/t/retagging-compilation-albums/8183/1 "2009-04-01T11:32:40Z")
At the moment my compilation albums are tagged with the current format.
%title% : title - track artist
%artist% : album artist
this means that all the artist tag fields for each song are actually the album artist e.g. ministry of sound. I've started retagging them manually but as you can imagine its quite tedious.
So, is there a way i can use the format value action to re tag the automatically. I.e. take everything after the dash " - " (track artist) and put that as the artist tag.
Thanks in advance, if this is possible itll save me a hell of a lot of time.
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### Author:  [@dano](https://community.mp3tag.de/u/dano)
#### Post date: [April 1, 2009, 2:01pm UTC](https://community.mp3tag.de/t/retagging-compilation-albums/8183/2 "2009-04-01T14:01:38Z")
Try this:
_Action type:_ **Guess values**
_Source format:_ **%title%**
_Guessing pattern:_ **%title% - %artist%**
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### Author:  [@samfau2](https://community.mp3tag.de/u/samfau2)
#### Post date: [April 1, 2009, 2:26pm UTC](https://community.mp3tag.de/t/retagging-compilation-albums/8183/3 "2009-04-01T14:26:00Z")
thanks for the reply, after a bit of googling i managed to figure it out and got the same.
worked a treat.
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### Author:  [@system](https://community.mp3tag.de/u/system)
#### Post date: [February 9, 2026, 12:21pm UTC](https://community.mp3tag.de/t/retagging-compilation-albums/8183/4 "2026-02-09T12:21:28Z")