Remove redundant artist information

[LyricsLover]

What about this answer:

COPYRIGHT - eliminate redundancy

In the COPYRIGHT field I often find strings like 2023 Blues Route / Delta 2023 Blues Route / Delta The texts contain a different even number of words. I would like to eliminate the obvious redundancy in the text. After correction, I would like to get the following: > 2023 Blues Route / Delta How to do this?

and this answer

Minimize redundant information

There is redundant information in many of my albums. I can correct a lot of this with rule-based macros. I like to have INVOLVEDPEOPLE as preferred information. PERFORMER often contains redundant information. [TAG Dubletten] How should a check or reformatting for the attached example be formulated? Can it also include PRODUCER?