This track originated as a song from Geezer Butler's solo project, The Geezer Butler Band. The demos show its transformation from a more straightforward rocker into the complex, multi-part epic that opens the album. "Letters From Earth":
. The band then spent six weeks at Monnow Valley Studios in Wales, refining the material into the heavy, sludge-driven sound that eventually defined the album. 🎼 Key Demo Tracks and Content black sabbath dehumanizer demos