Filter with multiple genres and custom field

In your example string you can ...

  • replace each apostrophe (') by one double quote ("),
  • replace each equal sign (=) by the word IS
    and your filter string should work in the Mp3tag filter section.

Read there ...
https://docs.mp3tag.de/filter
/t/10080/1
https://www.google.de/search?q=site:forums.mp3tag.de+Filter

DD.20140428.0915.CEST