I think you are saying you were at the show? What a historical event, IMO this album would have out sold Made In Japan had it not been locked in a vault somewhere. 
Sadly 'No', wish I had been. Simply commenting on the quality of the recording, picked up the CD a bit back. The only show I was at, and there were many over the years, that can be heard on a recording is Muddy Waters Fathers and Sons release (the live portion). If you like the blues, check it out, stellar lineup and amazing show. Have a good weekend.