Digitally remastered and expanded double vinyl LP edition of this 1971 album from the British Heavy Metal band including a bonus LP containing nine previously unreleased tracks. . Master of Reality was the third album by Black Sabbath. The album"s "darker" or "sludgier" sound was a significant influence on the Heavy Metal genres known as Doom Metal and Stoner Rock.Master of Reality was recorded at Island Studios in London, UK between February and April 1971. The album was produced by Rodger Bain, who had also produced their previous two albums. Sanctuary. 2009.