This Heat's Charles Bullen pitched in on the new effort, which is out in September. Thrill Jockey will release Grumbling Fur's Furfour LP on September 16th. The group is made up of London experimentalists Alexander Tucker and Daniel O’Sullivan, each of whom are habitual collaborators. O'Sullivan works with Sunn O)))'s Stephen O'Malley as part of ?thenor, and he's also a member of the reformed version of legendary Brixton band This Heat. Grumbling Fur also work with the minimal composer Charlemagne Palestine in the live setting. Furfour was written over the past three years at the duo's 147 Tower Gardens studio and, like previous Grumbling Fur records, is uncharacteristically poppy considering the far-out music the group's members are typically involved with. Chicago mainstay Thrill Jockey puts forth a long list of sonic touchstones when describing the new record's sound, including Arthur Russell, Ashtray Navigations, Penguin Cafe Orchestra and Syd Barrett. This Heat's Charles Bullen appears on the LP as does Isobel Sollenberger, the voice of Philly drone-psych band Bardo Pond. O'Sullivan and Tucker describe the project as being "about our friendship and shared love of music, art, literature, film, comics, goddesses and gods."