A behind the scenes picture of the audio sweetening session can be found at
http://www.pizazzudio.com/Pizazzudio/index.htm.
My only time seeing Lightfoot was at the old Mill Run Theatre (in the round on a rotating stage) in 1981. It was Mike Heffernan's first show. Lightfoot joked that they were trying him out and they may or may not leave the keyboard plugged in.
I believe he did "Betty Called me in" which was pretty good in concert. I always thought I remembered the song incorrectly until "Songbook" came out.