Kidi is a drum which is about two feet tall, its head is about nine inches in diameter and has a closed bottom. Kidi responds to calls from the lead drummer. This is known as a dialogue. This concept is also commonly known as call and response. Kidi plays in unison with sogo when engaged in a dialogue. During a dialogue the people playing sogo and kidi will change their rhythms to interlock with those of atsimevu, the lead drum. The lead drummer will play another call to bring the supporting drums out of a dialogue and back into their basic rhythms. In a performance of Atsia the dancers will also respond to calls from the lead drummer by changing their dance movement. The basic rhythm that kidi plays during Atsiã is demonstrated above.