[IDEA] Hide/show switch for albums

[the_bertrum]

If you make use of the "comment" tag to apply your categories, then use the search function to limit to the value you have put in the comment tag, that should achieve what you want.
As an example, I have a lot of music bought from Bandcamp. These files always have a comment saying they have come from "<bandname>.bandcamp.com", so I can put "bandcamp" in the search box and only have albums that came from bandcamp in the results set.