Dengbêj, the Kurdish-Yazidi variety of bardic chanting, generally incorporates overtones as Component of the chant, and in a method and that is distinct from other kinds of overtone singing. There may be an report 'Dengbêj - Kurdish extensive song and overtone singing' by Nick Ho

???????? ?????????????? ????????, ??????? ???????, ? ??? ???? ????? ???????? ?? ???? ?????????? ?? ????????? ???????. ?????? ???? ??????????????? ???????. ???????? ?????? ???????, ????????? ??????? ? ????. ?? ??????? ?????? ????? ??? ?????????? ??????, ??????? ???????? ? ??????.  ?? ??