Final answer:
Duke Ellington, a key figure in jazz music, wrote over 1000 songs and traveled globally to perform, impacting the genre's popularity.
Explanation:
Duke Ellington, a renowned musician in the big band era, wrote over 1000 songs and traveled the world to perform, significantly influencing the popularity of jazz music. He incorporated musicians with unique styles into his orchestra, creating complex yet beautiful music that expanded jazz's possibilities, such as his hit 'It Don't Mean A Thing If It Ain't Got That Swing'.
Learn more about Duke Ellington and the spread of jazz music here:
https://brainly.com/question/2557701
