View credits, reviews, tracks and shop for the Vinyl release of "Under Heavy Manners" on Discogs. Discover releases, reviews, credits, songs, and more about Derrick Morgan - Under Heavy Manners at Discogs. Complete your Derrick Morgan collection. Super Heavy Derrick Morgan tune done in response to the gun laws and other Draconian measures that seeped into Jamaica during the mid 70's. Derrick Morgan - Under Heavy Manners - Music. Derrick Morgan Under Heavy Manners Describing the state of emergency and new gun laws declared in Jamaica in , roots rocker with top dub on the flip. Format: 7inch. Artist: Derrick Morgan. Title: Under Heavy Manners / Full A Manners. Label: Justice. Grade: EX-/LR>>see record gradings. [Format]: 7inch [Condition]: EX- [Genre]: Reggae [Approx. year]: [Producer]: Bunny Lee. Introducing 7" 'Under Heavy Manners' by Derrick Morgan. [Label] Third World UK [Price] ¥0 [Genre] Reggae Find many great new & used options and get the best deals for 45 Aggrovators Full A Manners / Derrick Morgan Under Heavy Manners at the best online prices. Artist: Derrick Morgan. Label: Justice. Country: Jamaica. Catalogue: A: Under Heavy Manners. Artist: Derrick Morgan Composer: D. Morgan Producer: B. Lee.