Boasting the same feral ferocity as ’70s US post-punkers like Rocket From the Tombs and Pere Ubu, Ex-Cult (nee Sex Cult) solder clambering riffs to half-spoken, half-hollered vocals and drench the resulting songs in enough echo to make them sound almost alien. Much murkier and moodier than the music of their producer Ty Segall, Ex-Cult seethe and stalk where Segall storms right in. “Shade of Red” circles and circles, guitars humming like old Cessnas looking for a place to land. “On Film” is doomier — its downcast bassline could have been lifted from Unknown Pleasures, its howled chorus coming off like some dark warning from a fortune teller. Throughout it sounds both ragged and well-aged — like a relic from an earlier era, recently unearthed. That they are both new and still active is to our great fortune.