Philly’s filthiest and finest progressive death metal band already gave us a glimpse at their new album. Now, Horrendous are leading us deeper inside Ontological Mysterium with “Cult of Shaad’oah.” “Beat me back, but I’ll keep on climbing!” That’s how the band kicks off the album’s second single. They’re so eager to crack skulls that they’re practically foaming at the mouth. Prepare for a brutal ascent, indeed. “Cult of Shaad’oah” is a blazing onslaught of bombastic, old-school death metal. It sounds like carving your way up Mount Doom with the evil sword from Soulcaliber. Cymbals crash and ping while duelling leads race toward a fiery death. Here’s what the band has to say about “Cult of Shaad’oah”: “This song is a symbolic quest through the wastes of doubt and slumbering awar...