I was at two shows in Bern, 25th and 26 september (late show) 1973. I think Bobby was on board, and we had only two brass players (though [
www.discjapan.com] claims there were Madaio, Keys and Lawrence). The black man on percussion was Ollie Brown (not mentionned on discjapan.com).
Listening to all my bootlegs from Bern and other shows doesn't help me much, I'm not an expert for Saxophones (but I recognize Taylor on everything ;-).
According to Felix Aeppli (http://aeppli.ch/TUG08/CD1970-1973Up.pdf) the personnel for the Fall Tour in Europe 1973 was (the numbers refer to the standard setlist):
1-14: Percussion Ollie Brown;
1-4, 5, 6, 7-14: Keyboards Billy Preston and/or Ian Stewart;
1-5, 6a-8, 9a-12, 14: Saxophone Bobby Keys (all except last two shows)
and/or TrevorLawrence(some shows);
trumpet or trombone Steve Madaio
The last two shows would be Brussels (only second ??) and Berlin.
resotele