The upcoming collection contains tracks the metal greats recorded in 1969, when they were performing under the name Earth

The four men who first joined forces in 1968 as the Polka Tulk Blues Band before briefly trying on Earth to record a number of demos in 1969 that were never released. They soon adopted their more familiar name, the one they will be billed as at what is being called the group's final-ever concert on Saturday (July 5) in their hometown of Manchester.

The final Black Sabbath performance this coming Saturday is being billed as ‘Back To The Beginning’, so it’s appropriate that this week it’s been announced that an album of the band’s early recordings is to released, from back when they were still called Earth.