An uptempo number from bluegrass pioneers the Stanley Brothers, with three-way harmonies, fast licks, and innovative camera angles:
From 1966, I believe, which would make it just before the early death of brother Carter, the guitar player. Ralph, the banjo player, is still alive and going strong at 88. He enjoyed something of a late revival with his acappella O Death, from O Brother Where Art Thou? - here from 2008. The film title must have seemed appropriate somehow to Ralph, after all those years on his own.
The classic Rank Strangers, from the same show.
Along with the Louvin Brothers, one of the main influences on the Everlys.