Part of the Harry Potter fandom, this jazz wrock group appears to be from Michigan and has been producing songs since 2007. Quoted from their Myspace page: http://www.myspace.com/severusthedeatheaters. "Dark Jazz: a manifesto First, let me make myself clear; this is not muggle music. If you are looking for feel good songs about the Boy Wonder I advise you to look elsewhere. But if you are curious what those who practice the Dark Arts listen to on a rainy Sunday afternoon this might help. Read more on Last.fm