Many thanks to all, and especially to MMario who was able to come up with a jpg. I encountered chord patterns in both "C" and "Am," but suspect the later is probably correct. It's "on the schedule" of material to work on for our rehearsal next week and will be in the playlist for our next gig. This one, and "Broad Black Brimmer", are the two songs we haven't done and for which we get the most requests.