<Li> Greek traditional music and polyphonic songs from Epirus in northwest Greece </Li> <Li> Music of southern Albania </Li> <Li> Folk songs of peoples of the Middle Volga region (such as the Mari, the Chuvash and Tatars) </Li> <Li> The tuning of the Ethiopian krar and the Indonesian gamelan </Li>

Improvisation based on scale patterns like the ancient lydian or phrygian scales