# Delimiters, sub-delimiters (!) and flattening/normalising **URL:** https://community.mp3tag.de/t/delimiters-sub-delimiters-and-flattening-normalising/55931 **Category:** General Discussion **Created:** [January 17, 2022, 5:08am UTC](https://community.mp3tag.de/t/delimiters-sub-delimiters-and-flattening-normalising/55931 "2022-01-17T05:08:59Z") **Posts on this page:** 1 **Showing post:** 2
### 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: [January 17, 2022, 7:33am UTC](https://community.mp3tag.de/t/delimiters-sub-delimiters-and-flattening-normalising/55931/2 "2022-01-17T07:33:29Z")
I am a little puzzled that you have problems with genres and subgenres after I participated in this thread: > [@User-defined Hierarchical & Multiple Genres - Ideas](https://community.mp3tag.de/t/user-defined-hierarchical-multiple-genres-ideas/55555): > > I am tagging music files for use with the (free) RadioDJ playout app (for Windows, which I run inside a Parallels VM on a Macbook). It allows filtering of music by things like Genre. The filtering is semi-programmable in terms of string search/match in SQL, that the RadioDJ app supports, based on an Imported-media library (pointing to media files) in MariaDB (a better version of MySQL). Unsatisfied with the inherited (e.g. ID3v1 + Winamp) default genres (whose history I only today learnt of),… Also, I think that a discussion about the discogs data quality would be a thing for the discogs forums. MP3tag is here only the messenger. If you are not satisfied with the retrieved data and you want to adapt it to your needs, there are a number of action types that will help you to replace strings and split fields. I doubt that a ready-made function will be implemented for that as I bet that there are just as many users who want to keep the data as it is. --- _[View the full topic](https://community.mp3tag.de/t/delimiters-sub-delimiters-and-flattening-normalising/55931)._