The karnay is a national wind musical instrument which as well as
the surnai (Persian: سرنای) was not modernised for ensembles or
orchestras and exists in traditional form. It is used particularly
for signaling or as a ceremonial instrument with a powerful sound
and piercing timbre. There are two kinds of karnay : the muiuz
karnay (made from a mountain goat horn) and the jez karnay (made of
copper or brass). Both of them are very different instruments but
they are combined by lack of playing apertures.