This one has been with me for years - first time I heard it I was mesmerised. I love unusual intros to live concerts. It's the anticipation of things to come - like foreplay - (personally, twoplay suits me just fine but - each to their own) This is the best I have heard. Turn the volume up and remember what true analogue live recording sounded like. Also happens to feature one of my favourite drummers, Dennis St John. No computers - just a bunch of people totally in sync with the moment.
BTW - don't know who the guy on the keys is but that Hammond just shines in this concert.