The ambitious Seattle rap production duo Blue Sky Black Death released their sprawling album Glaciers this week, and it’s notably low on actual rap. And it’s not like that needed a corrective, since Glaciers is an absorbing and gorgeous record. But now it’s got a corrective anyway: “Keys,” a new online one-off that features the just-incarcerated (again!) champion street-rap weirdo Gucci Mane — who sounds awesome on this swollen synthetic production — next to past BSBD collaborators Deniro Farrar and Nacho Picasso, as well as Mack Shine, who I’ve never heard of before. It’s a great track, and you can download it below.

Blue Sky Black Death – “Keys” (Feat. Gucci Mane, Deniro Farrar, Nacho Picasso & Mack Shine)
(via FADER)

Glaciers is out now on Fake Four.