In the film 'Roots, Rock, Reggae' there is extraordinary footage of Lee 'Scratch' Perry producing a session at the Black Ark. The sequence shows Junior Murvin collaborating with members of the Congos and the Heptones on a song improvised on the spot for the film crew.
Before the vocals are recorded, the Upsetters lay down the backing track. The musical director of the session is the afro-haired bass player, Boris Gardiner. Gardiner was one of Jamaica's top bass players and arrangers in the 60s and 70s creating a run of classic tunes at Studio One. Black Art from the Black Ark contains features two previously unreleased dubplate mixes, several 12" mixes and and extended mix of Scratch's "What A Sin".