Improvisation Floyd/the Doors question

Pink Floyd played the songs Sheep and Dogs (off Animals) around 2 years before they were released as "Raving and Drooling, and "You've Gotta Be Crazy," respectively. Pink Floyd also played early versions of Dark Side of the Moon, as Eclipse (A Piece for Assorted Lunatics). All these are live.

interesting, thank you. I am going to have to find these examples and listen. I guess what i am getting at, is why do some of you have numerous cd's from the same tour...the same year.? It must be that each show is truely unique unto itself, having only heard studio Floyd, and an old Darkside of the Moon live tape, my "experience" with this remarkable band is thin, but asking questions and listening should open whole new catacombs of WISDOM! jdm. Peace from the Pacific Northwest!

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its easier to stay clean than get clean

I have been on a mission of late with getting bootlegs and one think to remember with the Floyd is that many albums were written, rehearsed, altered and chaged signifcantly in live performances. Of course now with the quality of bootlegs you can't do that. Here is an example.

Dark Side of the moon and 2 major changes
Great Gig In The Sky was originally called the Mortality Sequence and was very different and also On The Run was a long jam session.

Songs from Animals were beeing played back in '74 as mentioned in the posts and also I have some demos of the Wall which are very different indeed.

Floyd is great at this, many songs were played differently to begin with and evolved over time, and it is nice to see this progression on the bootlegged albums.