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.