“For post-metal fans, the big release this week is the Cult of Luna EP. But other bands are working hard in this genre as well, one of which is Canada’s Sarin. Their third album You Can’t Go Back drops this week, and while they don’t have the marquee name to go with the release, that doesn’t mean they should be thrust to the side as we all rush headlong into The Raging River.” Breathe deep.