Rarely, if ever, has the spirit and sound of rock’n’roll been distilled to such perfection. Iggy, the Asheton brothers and bassist Dave Alexander present a model of semi-improvised heavy psychedelic rock here. Loose and T.V. Eye are irresistible, but things get further out when Steve Mackay’s sax appears on the title track. After that, there’s nowhere to go but the insane chaotic blow-out of L.A. Blues. Unimpeachable!