[quote name='WalMan' post='964515' date='Sep 22 2010, 02:32 PM']But which version of JPJ's lines would you play? There's the rub.[/quote]
WalMan beat me to it - all these great bands put on different shows every night - part of what made them so thrilling to see live (otherwise stay at home and put the album on, nice comfy sofa, no-one in front of you swaying drunkenly and spilling his pint, no ticket costs, no worrying about missing the last bus home). Also, using your Led Zep/Joe Cocker analogy, I'm sure most people in the audience wouldn't notice if you hadn't nailed JPJ's exact lines. Sure the singer and the guitarist would have there work cut out, maybe a handful of air drummers would know all the exact drum patterns, but, just like the BBC "I'm In A Rock & Roll Band", no-one cares about us so enjoy yourself!