Topic on Help talk:Extension:WikibaseCirrusSearch

take File:Test.wav for example. it has P170=some value with qualifier P4174=RZuo. how do i make a search that finds all files with this?

I may be wrong, but I doubt that you can use WikibaseCirrusSearch to search structured data for files on Commons. You can however use the Wikimedia Commons Query Service (WCQS) with a SPARQL query like this:

SELECT ?file
WHERE
{
    ?file p:P170 ?statement.
    ?statement ps:P170 ?value.
    FILTER wikibase:isSomeValue(?value)
    ?statement pq:P4174 "RZuo".
}

Try it!

Edit: After testing on Commons I see that I was wrong: You can use WikibaseCirrusSearch on Commons. However there seems to be no support for "some value" values, so you will have to use the SPARQL query anyway.

wrote a request https://phabricator.wikimedia.org/T360113 .