Septuagenarian Mac Rebennack, aka Dr John, the Nite Tripper, is less in need of rediscovery than some of those of his generation recently put back on the map by skilful producers, as he has never really been away.

But where guitarist Dan Auerbach of The Black Keys, who was behind the controls as well as the fretboard for this set, has done Rebennack a real service in that he evidently has an appreciation of the whole span of the man's career.

So this is not another disc of Dr John tinkling the ivories and crooning standards and witty ditties in that inimitable growl; it serves up slabs of sixties funk served with a brimming side dish of voodoo and psychedelic guitar, and laces faith-referencing tunes like Kingdom of Izzness and God's Sure Good with soaring gospel backing vocals.

I know one baritone- bothering fan who will be ecstatic at the way the big sax is to the fore throughout, leading the horns in a way we haven't heard since the demise of Morphine (as the single Revolution foretold).