Why is Nietzsche such an important name (with Henri Bergson) in the genealogy of the Negritude movement? Because Negritude ultimately means “art as philosophy”. In other words, art is knowledge, is an approach of reality other than analytical: a truth manifested, according to Negritude writers, through the generally non-mimetic nature of African art.
So when Aimé Cesaire’s poetical action found its most powerful expression in theater (this is also true of Léopold Sédar Senghor as the author of Chaka) Nietzsche’s Origin of Tragedy became, quite naturally, his “breviary”.