What new technology was invented during this time that allowed jazz music to spread farther and faster than any style of came before it?

The invention of the radio during the early 20th century played a pivotal role in the dissemination and popularization of jazz music on a global scale. Prior to the advent of radio, the spread of music relied primarily on live performances, written music sheets, and phonograph recordings. However, radio technology revolutionized the music industry by enabling the broadcast of live and recorded jazz performances to a vast audience. This allowed jazz music to reach listeners far beyond the confines of its originating locations and contributed significantly to its widespread popularity.