After the debut LP and the success they had with Paranoid, Sabbath were probably under pressure to come up with something new. Wouldn't surprise me if their record company wanted a more commercial approach and another hit single. Iommi and Butler had mastered the Heavy Metal Leviathan that they had single handedly created. They took the best moments from their previous releases, and came up with the most amazing riff filled album ever. Sweatleaf, After Forever, Children Of The Grave, Lord Of This World and Into The Void - 5 of the finest Heavy Metal songs ever written. Sure, they had to fill it out with some instrumental interludes and a (decent) ballad but if you want a place to start with Black Sabbath because you've heard the stories and you're not convinced with Paranoid, Master of Reality is for you. Osbourne's vocals are a marked improvement, the lyrics are great - it's just perfect. The band went on to make the excellent Vol 4, Sabbath Bloody Sabbath, Sabotage and the under rated Technical Ecstacy - All worth 5 stars. Keep coming back to Master of Reality - Children Of The Grave was one of the first Heavy Metal songs I ever heard and it changed my life. The Middle 8 section of Into The Void gives me goosebumps 30 years later! I review a lot of new stuff, I should be doing more of this!