Folk songs and dances are essential ingredients of the traditional Naga culture. Naga folk songs are both romantic and historical, with songs narrating entire stories of famous ancestors and incidents. Seasonal songs describe activities done in a particular agricultural cycle. Folk dances of the tribes are mostly performed in groups in synchronised fashion, by both men and women, depending on the type of dance. Dances are usually performed at festivals and religious occasions. War dances are performed mostly by men and are athletic and martial in style. All dances are accompanied by songs and war cries by the dancers. Indigenous musical instruments made and used by the people are bamboo mouth organs, cup violins, bamboo flutes, drums made of cattle skin, and log drums. Nothing is written down and everything is handed down orally.