What is the core part of black traditional music?

Black people have a strong passion for life, impulses and rhythms; rhythms are at the core of black traditional music, where the passion and impulses of life are nurtured. African rhythms are free-flowing, full of rhythm and passion. In Africa, many labor scenes have a strong sense of musical rhythm, such as oarsmen singing with the movement of the oar, the picker walks on one side and sings on the other, and the housewife sings on the other side of the spring rice. French missionary E. A. Casali (1812-1891) on the Sotho people in southern Africa made this description: the Sotho people especially like the rhythm of the music, and the stronger the rhythm of the tune, the more they like. The women wear metal rings on their hands that ring when they move, and "they often gather together to grind their wheat with their hands, singing songs to the regular movements of their arms, which harmonize well with the rhythmic ringing of their rings." While dancing, the Sotho use their hands and feet to beat the beat and have special bells hanging from their bodies to enhance the rhythm of the music. The Hottentots have a strong sense of rhythm even when they sing lullabies, love songs, and hymns during rituals. The search for strong and spirited rhythm is the basic quality of African traditional music culture. In addition, black African music and dance have a very close relationship, its main rhythm, but also in the rhythm from the dance movement. And this rhythm is very complex. The performer deviates from the main rhythm throughout, making various variations on the melody. Two or several separate rhythmic voices appear. This rhythm is the rhythm of life, full of tenacious power and enthusiasm.