The bass drum that leads the percussion ensemble in Brazilian carnival is usually divided into a three-drum chorus to simulate: African Tradition.
What is Simulation?
Simulation is the act of imitating a sound or process. Africans are known for using the drums to produce sounds and music.
When the bass drums used in Brazillian carnivals utilize the three-drum chorus, they are imitating the African tradition.
Learn more about Brazillian Carnivals here:
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