My wife is the director of a non-profit. They have six to eight events per year. I have a solo act and have been playing most of the events. The people that attend the events are generally older, as am I, and the music I play is from our era. (60's & 70's) It goes over really well and I get compliments each time. I'm going into my third year of playing these events and I'm worried that I could be burning them out. I haven't seen any signs and I want to keep playing them. I try to add new songs each time and mix up the old ones. Any of you play for the same people for a long time?