Published online by Cambridge University Press: 07 March 2019
The Batak live in the countryside around Lake Toba in Northern Sumatra. According to linguistic and some other cultural differences they are divided into the subgroups Toba, Karo, Simalungun, Pakpak and Angkola/Mandailing. All Batak are obliged to the same adat, the traditional code of social behaviour which governs the relations among the three kinship groups (Simon 1982, 1984, 1987). The old-religious beliefs and customs of the Batak, upon which Christianity and Islam have been superimposed, are still an important part of adat ceremonies. I will confine myself here to certain old-religious implications of the ceremonial gondang music as found among the Toba and Karo.