chillin out/ hanging out - the original meaning is to play music informally, to have a "jam session."
The show was probably, "The Beverly Hillbillies," and the theme song was performed by "Lester Flatt, Earl Scruggs, and the Foggy Mt. Boys."
Banjo
Bluegrass as a style developed during the mid-1940s. Because of war rationing, recording was limited during that time, and it would be most accurate to say that bluegrass was played some time after World War II, but no earlier.
As with any musical genre, no one person can claim to have "invented" it. Rather, bluegrass is an amalgam of old-time music, country, ragtime and jazz. Nevertheless, bluegrass's beginnings can be traced to one band. Today Bill Monroe is referred to as the "founding father" of bluegrass music; the bluegrass style was named for his band, the Blue Grass Boys, formed in 1939.
A collection of old recordings that inspired the second folk-music boom.
Appalachian
bob dylan
Jamming is a radio transmission deliberately sent out to disrupt the enemy's communications.