In two chapters on Durban between the World Wars he charts the evolution of Zulu music and dance, studying in depth the transformation of "ingoma," a dance form popular among migrant workers since the 1930s. He goes on to record the colorful life and influential work of Reuben T. Caluza, South Africa's first black ragtime composer. And Erlmann's reconstruction of the 1890s concert tours of an Afro-American vocal group, Orpheus M. McAdoo and the Virginia Jubilee Singers, documents the earliest link between the African and American performance traditions.
Numerous eyewitness reports, musicians' personal testimonies, and song texts enrich Erlmann's narratives and demonstrate that black performance evolved in response to the growing economic and racial segmentation of South African society. Early ragtime, "ingoma," and "isicathamiya" enabled the black urban population to comment on their precarious social position and to symbolically construct a secure space within a rapidly changing political world.
Today,South African workers, artists, and youth continue to build upon this performance tradition in their struggle for freedom and democracy. The early performers portrayed by Erlmann were guiding lights--African stars--by which the present and future course of South Africa is being determined.