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. These include Memphis, Detroit, Chicago, Texas, Piedmont, Louisiana, West Coast, St. Louis, East Coast, Swamp, New Orleans, Delta, Hill country and Kansas City blues.