Jack Bruce looks disheveled here and was obviously on something. But things gradually progress for the better. Toward the middle, Ginger Baker starts playing drums. There is a lot of spontaneous bass playing going on. I just wish he could have playing the EB-1 like he did at the Cream reunion and with Robin Trower at Nijmegen. But as has already been established somewhere in a Gibson thread, Jack Bruce didn't even have the EB-1 until later.