Bambuti is a collective name for four populations of Ituri Pygmies—the Sua, Aka, Efe, and Mbuti. They are nomadic hunters and gatherers living in small bands that vary in size and are formed into patrilineal groups of from 10 to 100 individuals.

Bambuti technology is limited to the necessities of a hunting-and-gathering economy.  The Bambuti have no chiefs or any formal councils of elders; they settle their problems and disputes by general discussion. They believe in a good deed forest deity, and celebrate important occasions, including the maturity of boys and girls, marriage, and death, which are marked by special songs designed “to rejoice the forest.” The Bambuti’s music is complex in rhythm and harmony. Music, dance, and mime provide a means of reinforcing accepted values and form the basis of religious expression.

Source:   https://www.britannica.com/topic/Bambuti