Part singing occurs through most of Georgia and the North Caucasus. In general, the upper voices are sung by soloists while the rest accompany on bass in the limited range of baritone-tenor. More often than not, songs usually start with the solo middle voice. There is no imitative polyphony. Much of it is ostinato or drone based. The most diverse and developed polyphony is found in Georgia, which is the topic of the next post. The post after that then discusses the rest of the North Caucasus.