The big party happened, and for a variety of reasons, I didn't play.
#1. I just wasn't ready. I hadn't practiced enough; I'd left it until the last minute, and I thought I'd have a good shunk of Saturday to practice, but then the basement flooded and I ended up having to deal with that.
#2. The party had several scheduled performers, and then there was going to be an Open Mic at the end. Well, the party started just after 6, and the scheduled acts didn't finish until a little after 10:15, at which point there was dessert. And I had to start thinking about getting my daughter home, so really there was no time to even do it if I had been ready.
In the mean time I'm still practicing...