Today, T. Rex are hailed as glam kings—which they were for their first three LPs (following four as Tyrannosaurus Rex)—but it's often forgotten that five of their final six records were ridiculed as the sign of a band gone off the boil. Still, odd as Marc Bolan's self-productions and alter-ego Zinc Alloy are, his sense of melody is intact, and these deep cuts are a worthwhile endeavor.