The purpose of this sub-listing is to give those pages dedicated to specific performers at record label or tour promoter websites. This page becomes increasingly useless, because these places are always breaking their links. Many labels have other artist pages, and I don't think I am going to list them all. It seems like something of a waste of time, especially since the commercial labels continue to change their link formats.
Similar comments apply for promoters.
This page will be increasingly abbreviated, I imagine. It seems amazing that organizations especially charged with promotion, and presumably professionals at it, would be so hostile to even basic things like listing links. I apologize to your readers for not making this page better, but I have become frustrated.