# \[Q\] How to batch change genre to = sub-genre then wipe sub-genre
**URL:** https://community.mp3tag.de/t/q-how-to-batch-change-genre-to-sub-genre-then-wipe-sub-genre/11110
**Category:** Support
**Created:** [November 11, 2010, 9:45pm UTC](https://community.mp3tag.de/t/q-how-to-batch-change-genre-to-sub-genre-then-wipe-sub-genre/11110 "2010-11-11T21:45:47Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@johnhardyiv](https://community.mp3tag.de/u/johnhardyiv)
#### Post date: [November 11, 2010, 9:45pm UTC](https://community.mp3tag.de/t/q-how-to-batch-change-genre-to-sub-genre-then-wipe-sub-genre/11110/1 "2010-11-11T21:45:47Z")
Hi all, I'm trying to find the best way to batch change my songs' existing sub-genres [ContentGroup]
and make those/promote them to genres [GENRE] and then clear out the sub-genre field.
The only gotcha is I don't want a _blank_ sub-genre to erase an existing genre. Is this possible w/ actions? Thanks!
For example:
Artist Song Genre Sub-Genre/ContentGroup
Depeche Mode Wrong Electronica Synthpop
becomes
Depeche Mode Wrong Synthpop
Yazoo Situation Electronica
stays
Yazoo Situation Electronica
---
### Author:  [@pone](https://community.mp3tag.de/u/pone)
#### Post date: [November 11, 2010, 10:49pm UTC](https://community.mp3tag.de/t/q-how-to-batch-change-genre-to-sub-genre-then-wipe-sub-genre/11110/2 "2010-11-11T22:49:19Z")
make an action group:
1.
Action: Format Value
Field: GENRE
Format String: $if2(%contentgroup%,%genre%)
1.
Action: Remove Fields
Fileds to remove: CONTENTGROUP
---
### Author:  [@system](https://community.mp3tag.de/u/system)
#### Post date: [February 9, 2026, 12:22pm UTC](https://community.mp3tag.de/t/q-how-to-batch-change-genre-to-sub-genre-then-wipe-sub-genre/11110/3 "2026-02-09T12:22:41Z")