Love Led Zep
Just want to counter the previous poster who criticized Zeppelin.
He certainly has a right to his opinion, but his comments were those of someone who exaggerates a small truth - stealing some things from Muddy Waters and others to the poster made them a completely phony, inferior band who 'pulled one over' on us, but I'm going to believe my ears over his comments, and recognize that he's inferring far too much - Zeppeling did so much so well in their own music writing that his comments are quite wrong overall, IMO.
Also, I think Zeppelin may be the band with the most diverse 'sound' form album to album of any major rock act I can think of.
Most bands have a classic 'sound' whether Boston, Steely Dan, The Cars, Foreigner, Fleetwood Mac, Jethro Tull, Yes - as I list each of these you probably hear that 'sound' reaidng the name for each, even while they evolve from album to album. Zeppelin hcanged quite a bit more on, really, every album.