The Gaff‘s Let’s Rock is possibly not what Jimmy, Robert and Jon had in mind when they wrote Black Dog but after the whole groupie/ red snapper incident who are we to predict with any certainty what went through the minds of Led Zeppelin back in the day. Perhaps when they were all really baked the notion of a mutant Frankenstein’s monster of bass and breaks with added Black Sabbath licks like this might have occurred to them. But that’s all idle speculation. What is certain is that this track can be downloaded for free below. Throw out the horns!