Greetings!

I was wondering if it's possible to filter out specific tag values from search results. For example:

• I have albums that contain "Metal" in their genre tag. For some of those albums, there's also a subgenre specified in the same multivalue genre tag, for example, "Metal; Heavy Metal" or "Metal; Thrash Metal".
• I would like to see all albums in the "Metal" genre except those containing "Thrash Metal" in their genre tag.

UI flow might look like:
Albums -> All -> Add filter -> Genre -> +Metal (included) -> -Thrash Metal (excluded)

I couldn’t find this feature in either the current stable or master branch versions, and it seems there are no mentions of it in issues or discussions. Am I missing something?

If this feature doesn’t exist and isn’t in development, I’d love to try implementing it myself!