When I first saw this performance, there were things from a musically technical standpoint that got to me; HOWEVER ...
With art, sometimes you have to nix technicality! The process of creation, and the execution of performance are about the FEELING! Childish Gambino has got the feeling!
I wasn't there for the 70s, so I can't say what they felt like, but I think Gambino would have been well received with the energy he's giving here.
