Southern blues is a music genre that originated in the Deep South of the United States in the late 19th century. It combines African American spirituals, work songs, and folk music, characterized by its expressive lyrics and unique chord progressions. The genre often reflects themes of hardship, love, and resilience, making it deeply emotional and relatable. Key instruments in Southern blues include the guitar, harmonica, and piano, which create a distinctive sound. Notable artists like B.B. King and Muddy Waters have significantly influenced the genre, helping to shape its evolution and popularity. Southern blues has also laid the groundwork for various other music styles, including rock and roll and jazz.