Keith I'm not confused at all. Actually the Jabberwocky club gig was November 4,1971 and not the date the you tube clip put out.
Here is the link for every known Mahavishnu gig .
http://label.abstractlogix.com/?page_id=79 I was one of the ones who helped assemble this list , and this list was checked against the original itineraries which are still in possession of Elliot Sears, their road manager .
We did a lot of checking to try and get it right - using ticket stubs, advertisements in newpapers, the dates on bootleg releases, The Dawson archives etc. and we believe it to be highly accurate.
If you read page 67 of Power , Passion & Beauty , Steve Khan recalls being at the Gaslight for the first shows and mentions what he recalls as the first song they played, though he says " he could be wrong" - Meeting of the Spirits. It was not the first song they played, though it later became their usual opening song for the first year or more of their gigs.
Since no one has guessed, or cares enough to guess, the first tune they ever played on stage as a band was Vital Transformation . The last tune ever was One Word.
Peace, TED