I personally see no reason why it should be deleted. It is well defined. — Preceding unsigned comment added by 130.64.34.204 ( talk) 16:12, 12 February 2015 (UTC)
I realize this is invoking WP:OTHERCATSEXIST, but what about some of the other genres that are subcategories of Category:Albums by decade? I'm not asking this to be snarky; I'm legitimately asking if album + year/decade + genre ( Category:1990s Christmas albums, for example) is too many intersections for a category. Trivialist ( talk) 16:48, 14 February 2015 (UTC)