This must've been one hell of a show to be at!!
This is from the early show 1/1/70. Horribly out of tune for sure. However, the overwhelming spirit of the song and the intensity of the performance more than compensate.
Buddy could really sing. It's sad to see so many young singers miss the boat here and go off into melisma-land. I'd recommend watching Buddy Miles vids as a means to recover from bad singing techniques. There's a heck of a lot to be learned from Buddy Miles.