Michael, as someone who performs at a lot of festivals, I can identify with your predicament.

I don't like to repeat sets, but if some audience members request songs that I've done previously, and if there are a lot of new faces in the crowd, I'll repeat a few.

Also if I'm promoting a new /recent CD,I'll sing a couple of songs from it at each show, and try and push the hell out of it. *G*

Feel out the audience and go for it.

Do not, under any circumstances, feel UP the audience...

Seamus