The Jew's-harp, also known as the jaw harp or mouth harp, is a musical instrument that has been part of many cultures for centuries. It is played by plucking a metal tongue or reed while holding the frame against the teeth or lips. There are several synonyms for this instrument, such as the juice harp, Ozark harp, marranzano, mouth harp, and vargan. The instrument has been used in different genres of music, such as folk, classical, and even pop and rock. The Jew's-harp has a distinctive sound that adds unique texture and rhythm to any musical piece, making it a valued instrument for many artists.