Argh. Very sad. (But of course no show is ever truly missed when you have youTube).
Anyway, we did find friends and we did catch Old Crow Medicine Show -- a string/bluegrass band from Nashville. They were pretty fun - lots of whoopin and hollerin and instrument-swappin. They crowded together in a tight cluster in the center of a big stage, like they were used to playing in elevators and unfamiliar with all that space. (Much of that night's set is up on YT, including this.)
Good songs too. The song that caught my ear during the show was Methamphetamine. Apparently their big signature song is Wagon Wheel, which was written by OCMS based on a Bob Dylan outtake. Anyway, it's nice to discover a new band - I'll have to keep an eye out for them in the future.