Final answer:
Big Bands revolutionized jazz in the 1920s and blurring racial lines, rock and roll in the 1950s had an impact on social interactions and ending segregation.
Step-by-step explanation:
The Big Bands of the 1920s had a significant impact on the development of music. They revolutionized the jazz genre, introducing improvisation and a bolder rhythm and harmony compared to the sedate melodies of the era's Big Bands. Big Bands like the King and Carter Jazzing Orchestra attracted large audiences, including young white flappers and sheiks, and helped popularize black musicians playing jazz.
In the 1950s, the birth of rock and roll further blurred racial lines and contributed to advancements in ending segregation across the nation. Rock and roll had a profound influence on social interactions, bringing black and white teenagers together. It also led to desegregation in the music industry, with record companies signing both black and white artists, and records from both being sold in the same stores.
Overall, the Big Bands and the birth of rock and roll had a lasting impact on the music industry, influencing future genres and promoting racial integration.