So the band I cited the other day is much more impressive than I thought it was. I thought it was a pleasant bluegrass band, and it is: but it's apparently a foreign band, "from Sweden," which has managed to master the genre so well that I didn't notice that they weren't Southerners. Successfully adapting to a foreign culture is really an accomplishment for an artist! (Although I suppose I'm supposed to be angry for 'cultural appropriation,' I have to say that I think that concept is bull.)
Here they are doing "John Henry."