From MusicBrainz Wiki
The ideal process to get such a change done is:
- propose the change on the UsersMailingList
- If you get some positive feedback,
- For an existing type add the proposal to the discussion section of the existing relationship type page.
- For a new type write a full proposal on a page named like this SomethingRelationshipType.
- Propose the change to the StyleMailingList. If you get consensus there, the change will be implemented.
Currently RelationshipEditors are: