The karna or karnay (; Arabic, karnā, qarnā, Hindi karnā, Tajik карнай karnai, also karnaj, Uzbek karnay, Kazakh керней kernei) is a metal natural trumpet. The name is first mentioned in the biblical book of Daniel, used in the Middle Ages to the Persian military bands and in the Indian Mughal Empire to the representative orchestra naqqāra-khāna and which is still used by this name in ceremonial music in Central Asia and northern India. Since the middle of the 3rd millennium B.C., trumpets known in both Mesopotamia and Ancient Egypt were used in both regions as signaling instruments in ceremonies, warfare and work assignments. They could only produce one or two notes, but could send messages using patterns of rhythm. Karnā derives from Aramaic qarnāʾ, Hebrew qeren and Akkadian qarnu. In addition to the Arabic word būq for brass instruments in general (horns and trumpets), in medieval Arabic texts nafīr predominantly referred to a slender, cylindrical, shrill-sounding metal trumpet, būq a slightly shorter, conical trumpet and karnā a conical, sometimes S-shaped trumpet up to two meters long. The trumpet types nafīr and karnā were used in Iran, together with various drums and other percussion instruments, in the naqqāra-khāna until the early 20th century. Today the karnā in Uzbekistan and Tajikistan is a long, mostly cylindrical metal trumpet, and in northern India it is a straight, tapered metal trumpet that can be long and thin or short and wide. It is used in the music of Iran, Tajikistan, and Uzbekistan, where it is considered a national instrument. KARNAY The kernei is a Kyrgyz wind musical instrument, which as well as the surnai () 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 kernei: the muiuz kernei (made from a mountain goat horn), and the jez kernei (made of copper or brass). Both of them are very different instruments, but they are combined by lack of playing apertures. Muiuz kernei The muiuz kernei is an ancient instrument made from a curved mountain goat horn, ranging in length between 30 and 40 cm. The instrument does not have a mouthpiece and gives only a few sounds of thick, soft timbre. The Military Brass Band of the Commandant Regiment of the Ministry of Defense of Tajikistan (the only