I didn't ask for a concert at Westercon this year, because up until about two weeks ago I wasn't sure I'd be able to affort to go. (It's marginal, but it's important enough in terms of keeping in touch that we decided to go anyway.) I also don't read my email very closely if I'm not expecting anything in particular.
So you can imagine my surprise when I took another look at the schedule and saw that I have a one-hour concert slot tomorrow (Saturday) at 6pm.
There may be a lot of old favorites in this one.