The basic track was dated March 21 1973, but that was probably erroneous and meant to be 1974. Dennis added his vocal on August 20 1974. There isn't another version from 1977, as far as I know.
Andrew Doe's site lists recording taking place on October 18, 1977 for "My Love Lives On", "Something New" and "10,000 Years Ago." I wonder if maybe this is a mistake then?
Interesting. Based on how he sounds, I would havevthought 1977 or later for the vocal.
I feel absolutely the same way. He sounds gravelly, immediately making me think it was from the
Pacific Ocean Blue sessions or later. But perhaps it is indeed '74. He does sound pretty rough (in a good way) on "Barnyard Blues" as well, which is also a '74 cut. So who knows?