The rapid-fire twang behind 1960s car chases and sitcom themes is the product of a precise technique called Scruggs style. This episode explains what banjo playing looked like before Earl Scruggs, from clawhammer and frailing to minstrel, parlor and jazz plectrum styles, and then breaks down the biomechanics of his approach: metal fingerpicks, a thumb pick, and the ring and pinky fingers planted on the banjo head to isolate the picking fingers like independent pistons.

The hosts describe the rolls that rarely strike the same string twice, the syncopation and shuffle they create, and how Scruggs built a vocabulary of modular licks after joining Bill Monroe in 1946 and forming the Foggy Mountain Boys with Lester Flatt. They cover his left-hand slides, chokes and hammer-ons, the blue notes that gave the music grit, his backup playing as the mi ...