It was a good idea the first time, and it’s a good idea now, although four discs worth of ’70s covers does seem to be pushing things to the saturation point.
Australian seductress/occasional Zero 7 vocalist Sia should be no stranger to anyone who indulges in the air-y, sensual chillout sort of TV soundtrack ambience.
The four tracks veer from black metal screeching to dreamy Isis/Pelican-style post-rockery to downtuned stoner thudding, sometimes in just a few minutes.
The Ronnie era was a rock solid, efficient, self-aware time for Black Sabbath, and folks pretty much dig both Heaven and Hell and Mob Rules, as they should.
Lineage-from Milligram and Lamont, placing them in Boston’s gulping hardrockcore and whoop-ass drunk-speed-rock by the 40 oz. It rumbles exactly right.