Well, next time if you feel there's a train wreck coming, talk to the BL, explain that it has to be MUCH better for you to take the part, that you, and the band do not yet have a good enough grasp on the material. Of course , in all fairness, this has to be done asap, so they can get someone, if you drop out. I guess for myself, 20+ songs that I don't know, and just a couple of days to learn them.... not happening, seems to me the BL was not concerned with quality at all, he/she should have known at practice that it was not really happening...A gig, I personally would not be a part of, I probably would not take a gig with the Bl again, honestly.