Looks like it was the first time I played Return the Key in public, but apparently there was something strange going on with the guitar (or maybe a microphone?) – I couldn’t detect a problem, but it was evidently bad enough to require some kind of immediate intervention, so the performance should probably be considered a wash. I guess? Also the little camera turned itself off, so I don’t know how bad it was. As I’ve had no other problems with the instrument, and other people were using the same gear with no problems I have to conclude that it was some kind of evil fluence. Things that are too time-consuming to find an explanation for can generally be blamed on maleficent supernatural forces.