so the koto might play a line that sinks down [sings example] like this. shakuhachiot play in that kind of ornamentation, that kind of subtlety, so we might play just an introductory note to the phrase, where we play [sings example]. all of these various sounds create such a beautiful heterophonic texture. (narrator) ganga, a polyphonic song form, is performed throughout bosnia and herzegovena. this heartfelt music is sung outdoors by groups of men or women. the lyrics reflect personal experiences, themes of love, or the singers' connection to community and tradition. one of the intentions of singing ganga is to combine the voices in a way that results in a powerful and resonant texture. [singing together] (woman) if we are listening to ganga, we can think of texture in terms of one voice being, relatively speaking, thin in comparison with two voices that thicken the texture. we can also think of texture in the context of just a single voice and even within the context of the single sound. every sound has its own texture. there are a lot of stoppings of the sound, li