# Filter reverse

**URL:** https://community.mp3tag.de/t/filter-reverse/16625
**Category:** Support
**Created:** [February 23, 2015, 8:36pm UTC](https://community.mp3tag.de/t/filter-reverse/16625 "2015-02-23T20:36:52Z")
**Posts on this page:** 1
**Showing post:** 5

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### Author: ![Zerow](https://community.mp3tag.de/user_avatar/community.mp3tag.de/zerow/32/11379_2.png) [@Zerow](https://community.mp3tag.de/u/Zerow)
#### Post date: [February 24, 2015, 9:36pm UTC](https://community.mp3tag.de/t/filter-reverse/16625/5 "2015-02-24T21:36:00Z")

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> [@Genre tag](https://community.mp3tag.de/t/genre-tag/16611/9):
>
> ... So there is no easy [quick and universal] way to reverse? ...

> [@DetlevD](#):
>
> This is a simple example to demonstrate the principle ...  
> Filter: TITLE HAS "ou"  
> Inverted Filter: NOT TITLE HAS "ou"
> 
> DD.20150224.2016.CET

It would be so much better, if one could just write in filter

HAS "ABC"

and to reverse it

NOT HAS "ABC"

without specifying the tag field

Or even better: just click an icon, that would automatically reverse whatever expression is in the filter, no matter how complicated. I think, such a handy feature should be implemented in future versions of Mp3tag

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