Underground beatsmith Undefined has been tailoring his craft for many years, lending his raw, gritty production to a bevy of underground mic technicians such as Army of the Pharaohs, JoJo Pellegrino, King Syze, El Gant Sabac Red, Big Lou and more. Earlier this week, the Long Island based producer unleashed his debut extended play release, Certified A-Side to the masses; a ten track offering which boasts features from the likes of Nature, Brown Bag AllStars, Nutso, Outerspace, Reef the Lost Cause and more. Among the tracklist boasts the Little Vic (“The Exorcist” prod. by DJ Premier) and Peter Leo assisted banger “Closed Caskets” which is now available in visual form. Have a look as both Long Island natives go line for line, bar for bar, and verse for verse using various rugged terrains as the back drop. Certified A-Side is now available on iTunes.