Discusses the influence of people and events worldwide in the 1970s which led to developments in minimalism, modern opera and ballet, jazz-rock fusion, heavy metal, progressive rock, punk, and reggae.

Discusses the influence of people and events worldwide after World War I which led to a renewal of folk and national music, neo-classicism, the popularization of jazz, and political repression of musicians under communist and fascist regimes.

Discusses the influence of people and events worldwide in the late twentieth century which led to crossover between musical genres, stadium rock fund-raisers, hip-hop, rap, and the rise of world music.