1 Identify the origins of rock-and-roll music listing which musical genres it blends together and name a person who was an important figure in its early development?

Rock-and-roll music originated in the United States during the 1950s. It blended elements of various musical genres, including:

- African American rhythm and blues (R&B)

- Country and western (C&W)

- Gospel music

- Pop music

- Swing music: Big Band Music

- Boogie Woogie

- Folk

- Blues

One important figure in the early development of rock-and-roll music was Chuck Berry. Berry was an African-American singer, songwriter, and guitarist who is considered one of the pioneers of the genre. His music was characterized by its driving rhythms, catchy melodies, and lyrics that often dealt with teenage life and relationships. Berry's songs, such as "Maybellene," "Roll Over Beethoven," and "Johnny B. Goode," became anthems for the rock-and-roll generation.