Music and dance is a fundamental element of Candomblé. The drumming will often take place all night. Participants are expected to wear white, with women wearing skirts. Three main types of drum are employed, the largest being the "rum", the middle-sized being the "rumpi", and the smallest being the "lé". These drums are understood as living and need to be fed. The head drummer is known as the "alabê". Many terreiros maintain that women should not be involved in this ritual drumming, although others reject this tradition. In some rituals, practitioners will drink a concoction containing jurema, a mildly hallucinogenic plant, which is sometimes mixed with the blood of sacrificed animals.