Black Sabbath's titular album is just perfection is one of albums that is just constantly on rotation on every listening session. Warning is one of my favorite metal tracks with one of the best guitar solos and the Atrium fully encapsulate that dark, grungy feel and just a treat to listen.
Lately I've been on a Rush binge and the Atrium once again shine with the way it renders guitars and drums. Caress of Steel, 2112, Fly by Night the list goes on. Definitely give The Necromancer a listen on the Atrium.