Third Black Sabbath album, released on July 21, 1971. Reached #8 on the U.S. album chart, immediately going gold. It was Black Sabbath’s first album to debut in the Top 10.
Some early German, US and Canadian pressings had the title incorrectly printed on the record labels as ‘Masters Of Reality’.
Also their first album to feature the heavier new sound created by dropping the tuning three semi-tones below the standard E, thus creating the premise for what would become known as the stoner rock sound.