That night "Chappo" and his band were in splendid shape. They rocked, or rather R&B'd, everybody to full satisfaction. And his version of "Let's spend the night together" makes the original one of the really old farts aka the Stones sound lame, tame, and dull, in my opinion.
The sound quality is not the very best, and I have no idea how to dance to Chapman's own pieces, but the raw power and the atmosphere should make anyone jump up and move, e.g. "Midnight Child" and "Who pulled the nite down". Move your furniture out of the way, warn the neighbours, enjoy!