Vol. 4

Vol. 4 is the point in Black Sabbath's career where the band's legendary drug consumption really starts to make itself felt. And it isn't just in the lyrics, most of which are about the blurry line between reality and illusion. Vol. 4 has all the messiness of a heavy metal Exile on Main St., and if it lacks that album's overall diversity, it does find Sabbath at their most musically varied, pushing to experiment amidst the drug-addled murk. As a result, there are some puzzling choices made here (not least of which is the inclusion of "FX"), and the album often contradicts itself. Ozzy Osbourne's wail is becoming more powerful here, taking greater independence from Tony Iommi's guitar riffs, yet his vocals are processed into a nearly textural element on much of side two. Parts of Vol. 4 are as ultra-heavy as Master of Reality, yet the band also takes its most blatant shots at accessibility to date -- and then undercuts that very intent. The effectively concise "Tomorrow's Dream" has a c