Jew's harp
The Jew's harp (also known as jaw harp or mouth harp) is a small musical instrument. It is held on the mouth and plucked. The person playing the harp changes the pitch and tone of the sound created by changing the shape of their mouth.
Jew's Harp Media
The range of a tenor Jew's harp
Play range as string harmonics (info • help)
Angel playing a Jew's harp at the Minstrels' Gallery at Exeter Cathedral, 13th/14th century
Young Man with joodse harp by Dirck van Baburen, 1621
Demir-khomus from Tuva
Sound demonstration and spectrum of the Mollner Jew's harp (Austria) – alternating technique on the notes C, D, G