well *I* think guitars and banjos ought to have a little micro chip embedded in the neck that emits a pulse of energy and beeps or flashes a red light when the instrument varies from standard tuning! Guys who play at home all week show up at gatherings, having re-tuned to themselves until they are WAY off, and then they tune to each other, and poor, long suffering autoharpists are left sitting.

Ya' know, I'm beginning to think it's a plot! Bluegrass bands are behind it!