The final volley from Peter Green before leaving the band he formed, this dark and turbulent 1970 masterpiece is the sound of an acid fried young genius being torn apart psychologically by the evil god of money. Indeed as this was being recorded Green was actively trying to convince his bandmates to begin giving away all of their then considerable wealth.

Green has explained that he wrote the song after experiencing a drug-induced dream, in which he was visited by a green dog which barked at him. He understood that the dog represented money. “It scared me because I knew the dog had been dead a long time. It was a stray and I was looking after it. But I was dead and had to fight to get back into my body, which I eventually did. When I woke up, the room was really black and I found myself writing the song.

In any case this is a hell of a guitar workout with amazing chord progressions and has been covered by everyone from Judas Priest to The Melvins, but none matches the vibe of the original.