I stumbled across this 1971 Bee Gees concert. I’m only a couple of songs in, but it may be an important find for people like us. Check out the opening number, where Barry puts forth an evolving Look at BTO-worthy shot to the midsection. Then Maurice counters with a Bakersfield-worthy slice of machismo called “Lay It On Me.” Robin settles down the threat of a full-on Bee Gees Fight Club with the tenderest of ballads, but parts of this performance beg the question…