High Quality Content by WIKIPEDIA articles! The Jew`s harp, jaw harp, mouth harp, Ozark harp, trump or juice harp, is thought to be one of the oldest musical instruments in the world; a musician apparently playing it can be seen in a Chinese drawing from the 4th century BC. Despite its common English name, and the sometimes used Jew`s trump, it has no particular connection with the Jewish people or Judaism. This instrument is native to Asia and used in all tribes of Turkic peoples in Asia where it is variously referred to as a temir komuz (literally, iron komuz), agiz komuzu (literally, mouth komuz) or gubuz.