Country blues (also folk blues, rural blues, backwoods blues, or downhome blues) is acoustic, mainly guitar-driven forms of the blues, that mixes blues elements with characteristics of folk. After blues' birth in the Southern United States, it quickly spread throughout the country (and elsewhere), giving birth to a host of regional styles.
When African-American musical tastes began to change in the early 1960s, moving toward soul and rhythm and blu music, country blues found renewed popularity as "folk blues" and was sold to a primarily white, college-age audience.
Traditional artists like Big Bill Broonzy and Sonny Boy Williamson II reinvented themselves as folk blues artists, while Piedmont bluesmen like Sonny Terry and Brownie McGhee found great success on the folk festival circuit.
Charles Ray "Charlie" McCoy is an American session musician noted for his work on a wide variety of instruments especially remarkable ability in playing the harmonica. This study unit is influenced by the playing style of Charles McCoy.
You can play and learn country blues on chromatic harmonica but without special effects and impressive sound of bending and therefore the learning in this unit is on the Diatonic harmonica with 10 holes scale of C.