[2n-me]

Jazz music underwent significant changes during the 1930s, largely due to the confluence of the Great Depression and the growing popularity of radio broadcasting. One of the most notable shifts was the rise of ” swing era” jazz, a style that emphasized large ensembles and big band arrangements. This was a departure from the small group and solo improvisation that characterized the 1920s.

Another important development was the growing importance of the “arranger,” a musician who crafted the specific, intricate, and pre-rehearsed musical arrangements that big bands performed. This role differed significantly from the “composer,” who created the initial melody and harmony of a piece, and the “improviser,” who freely altered that melody and harmony in live performance.

The growing popularity of radio also led to the standardization of jazz. Recorded music could be played in millions of