What is this 'black' in black popular culture?

In: Social justice: a journal of crime, conflict and world order, Band 20, Heft 1-2

Abstract

Suggests that the repertoires of black popular culture, which, since black people were excluded from the cultural mainstream, were often the only performative spaces left, were overdetermined from 2 directions: from their inheritances; and by diasporic conditions in which the connections were forged.