I love D&TD bootlegs. They were the best rock band on the planet at the time, underground. I posted this a few months ago, but this IS Claptons best studio solos for me. And Gordon's best drumming.
I think this song was on the original Chicago Transit Authority album.
I liked early Chicago (CTA) but the songs were too long for radio so they became a Pop band.
Early Chicago (CTA) reminded me of 'Blood, Sweat and Tears', who I really liked.