Prolific Detroit post-punk band Protomartyr have announced a new album called "Relatives in Descent". The album was co-produced with Sonny DiPerri, who has worked with Dirty Projectors and Animal Collective. This is the band's fourth album and first since 2015's "The Agent Intellect". "A Private Understanding" is the lead single from the album. "Relatives in Descent" is out September 29 via Domino.