The group's third album, Master of Reality, arrived in 1971 and introduced fans to essential Sabbath tracks like "Sweet Leaf" and "Into The Void." The 2-LP deluxe edition builds on that legendary album with versions of "Children Of The Grave" and "Sweet Leaf" that have different lyrics. There is also an instrumental version of "After Forever" and an outtake for "Solitude" that features an alternative guitar tuning.