Sour Soul is the collaborative album from for which BBNG and Ghostface Killah sought inspiration from the music of the 1960s and 70s. This included the recording techniques and production of that era, eschewing sampling in favor of live instrumentation. All tracks are produced by Frank Dukes, with additional production from BadBadNotGood and Wayne Gordon. MF DOOM, Elzhi, Danny Brown and Tree contributed feature guest spots.
Ghostface does not appear on tracks 1, 5 and 12, which are instrumental tracks. Additionally, a solely instrumental version of the album was released with the record.