American Folk Blues is a music genre that originated in the African American communities of the southern United States in the early 20th century. It combines elements of African musical traditions with European folk music, characterized by its use of simple chord progressions, call-and-response patterns, and expressive lyrics that often address themes of hardship, love, and social issues. The genre has roots in the work songs and spirituals of enslaved people and has influenced many other music styles, including rock and roll, jazz, and country. Notable artists like Muddy Waters and B.B. King helped popularize the blues, making it a significant part of American music history.