# How to make effective an field

**URL:** https://community.mp3tag.de/t/how-to-make-effective-an-field/42572
**Category:** General Discussion
**Created:** [August 5, 2018, 5:46pm UTC](https://community.mp3tag.de/t/how-to-make-effective-an-field/42572 "2018-08-05T17:46:14Z")
**Posts on this page:** 1
**Showing post:** 2

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### 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: [August 5, 2018, 6:00pm UTC](https://community.mp3tag.de/t/how-to-make-effective-an-field/42572/2 "2018-08-05T18:00:41Z")

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> [@marcelo\_neri](#):
>
> This not happens yet with the "KEY" field. How can I make it effective?

Which field should be displayed as "key"? (could it be "INITIALKEY"?)  
See the help for supported standard fields:

> **[Tag Field Mappings – Mp3tag Documentation](https://docs.mp3tag.de/mapping/)**
>
> Overview of all available tag fields, their names in Mp3tag, and how they are mapped to the internal structures of the different tag formats. Mp3tag is the universal Tag Editor.

and/or check the extended tags dialogue and get the field name from there.

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