I’m going to have to disagree there boss.As I have brought my analyses on the Reality of Zep. I have pointed out the the first two albums were fantastic.But that exhausted their talents quite a bit. They couldn't follow Jeff Beck anymore, but their albums continued. There were however always one or 2 outstanding cuts amongst the filler. Funny my two favorite zep song are about water; The Levee & The Ocean
Or challenging and excitingAside from the epic drums, harp, guitars, vocals and bass, this tune would be a technical nightmare to reproduce in the analog domaine.
Everything has a different flange effect on it by the end of the song, they introduce it at different times on different sources. That must have been tedious.