Ive never heard this version and Ive owned power and glory for years. Im pretty sure this is a live cut and not actually from the studio album. Regardless this band rips. At about 3:28 you can hear a small Proclamation tease in the solo, how cool!
they are not only sincere, but the most original musicians I have heard in prog rock.
they are soo deeply into music theory too, that very few actually understands their compositions. (I am not a musician. I just enjoy it without understanding.)