Just in case he's checking in...
Who knew this was out there, preserved on video? Amazing! Did someone do a direct download from their Akashic records?
Take one supremely confident studio wizard, add two improbable mutton chops, a vintage Les Paul, stir in a few Psilocybin mushroom excursions, back up with a tight rhythm section, add in his little brother on keys and well, you get SKYDOG/Fillmore East 1970!