Wikipedia
The atabaque (; ) is a tall, wooden, Afro-Brazilian hand drum. The shell is made traditionally of Jacaranda wood from Brazil. The head is traditionally made from calfskin. A system of ropes are intertwined around the body, connecting a metal ring near the base to the head. Because of this tuning mechanism the drum is sometimes known as 'Atabaque de Corda'. Wooden wedges are jammed between this ring and the body and a hammer is used to tighten or loosen the ropes, raising or lowering the pitch of the drum.
In Africa, cord-and-peg tension atabaques had a distribution area roughly congruent with the iron double bell (Agogo). This included the Guinea Coast from the Niger River and west to Benin, Togo, and Ghana. Beyond West Africa, cord-and-peg tension drums appeared in Bahia, Suriname, St. Domingue, Cuba, and the southern states of America. These drums traveled with the Ewe, Fon, Akan, and Yoruba people during the New World diaspora.
The atabaque is used in Capoeira, Maculelê and the Afro-Brazilian religion of Candomblé. It is considered sacred in Candomblé. The main instrument in Candomblé is the drum (Atabaque), skinned with cord-and-peg tension.
There are three types of atabaque: rum, the tallest with the lowest pitch; rum-pi, of medium height and in the middle pitch range; and lê, the smallest and highest-pitched.
In Maculelê and the rituals of Candomblé, as many as three Atabaques are used (usually one of each type), but in Capoeira, traditionally only one is used.