There are umpteen ways to promote your forthcoming album, but the route taken by Danny Brown feels unique. This week, before the release of his joint album with Jpegmafia, a fellow dweller on hip-hop’s left field and self-styled spokesperson for “eccentric Black people … who grew up in the projects but listen to Throbbing Gristle”, Brown invited his collaborator to join his set at Austin’s SXSW festival and then announced that he himself was entering rehab: “Honestly, my dumb ass is supposed to have been gone, but I’m broke so I gotta do shows to take my ass in.” He also apologised to the audience for having written “so many songs about doing drugs” – a category in which you could presumably include Scaring the Hoes’ Fentanyl Tester and Where Ya Get Ya Coke From – and told them to enjoy partying at the festival, but added the caveat that, if they did, “shit could get dark”.