Still listening to the Fillmore Concerts 1992 mix by Tom Dowd - Whipping Post is just crazy - the first six minutes dissolve into an amalgamation of themes, trances, movements and refrains that eclipse the standard format of what a popular song is and evolve into art. The shifts that this live exploration of sound make are a kin to winding through a mountain pass so subtle and soft are their landings you may fail to notice every strand of grass or shift in rock formation but they are there.
In its whole its a creative work of genius and the gods but each note, arpeggio and sonic exploration has a purpose and melds from the righteous spirit that drove their creation in the first place.
Their work together on these recordings are true compositions rivaling the masters Bach, and Mozart. Call it jazz, call it rock n roll but it is so much more and beyond the "jam band" moniker its ridiculous. Get this music out listen to it again deeply and pay attention. If you think you know it because you listened to it repeatably years ago you will be surprised at the sophistication, the maturity, the musicianship and the touches and flourishes that permeate the main themes and arcs. It's quite unbelievable what is going on here as the musicians work together and intertwine with each other.
Eat a Peach is on deck next on my musical sojourn back through their catalogue but its going to have to wait for a while more as I re-listen to disc two and circle back to the first disc - I really don't see an end in sight and that in and of itself is a beautiful thing.