How did radio and recordings spread fox-trots and other ballroom dances?

During the 1920s, the dissemination of fox-trots and other ballroom dances was significantly accelerated by advancements in the music and entertainment industries. Band arrangements of these dances were widely distributed through three primary channels: music publishing, recordings, and newly networked radio broadcasts.1

This exposure played a crucial role in establishing these dances as standard ballroom fare. By popularizing the music associated with these styles—including Black music—radio and recordings helped bridge the gap between professional performers and the public, facilitating the diffusion of dance trends across wide audiences. This era of accessibility allowed the public to learn steps not only through these media but also via dance teachers, manuals, and newspaper columns, effectively democratizing ballroom dance.123