Tim Purcell (the male singer in the middle, who also posted the video) said in the comments under the video:
Quote:
Graham Nash wrote me to say he loved it!


Wouldn't it be cool to post a cover, then get that feedback from one of the original artists?


and yeah, I had a primitive radio with earplugs that enabled me to hear top 40 music from powerful stations all over the east coast. It was some kind of science project that didn't even need batteries. It had an alligator clip that grounded the radio, after which I got a weak radio signal. It changed channels by moving a metal lever across an open coil! It was shaped like a Buck Rogers style rocket ship

https://www.dropbox.com/sh/ey71h8ep047758h/AAC12jNM0Hz9Q8zsh5iDeqNHa?dl=0