🎵 Meet the instrument
What is a jaw harp?
A small lamellaphone with a remarkably rich sound, shaped by the player’s mouth, tongue, breath and rhythm.
A simple principle, many tone colours
The jaw harp is an idiophone: its sound is produced by the vibration of its own flexible tongue. The frame is placed against the teeth or lips, and the mouth cavity acts as a variable resonator.
A finger pluck sets the tongue in motion, producing a fundamental frequency and a series of higher components. By moving the tongue and changing the shape of the mouth, the player emphasises selected parts of that spectrum. This does not turn the jaw harp into a conventional keyed melody instrument: the player works mainly with rhythm, tone colour and perceived tone patterns.
Tooth and lip jaw harps
“Tooth” and “lip” describe how the instrument contacts the mouth. A different distinction — heteroglot and idioglot — describes whether the tongue is a separate component or is cut from the same piece of material as the frame.
Šešulka
The forged frame rests lightly against the slightly parted front teeth. A separate steel tongue vibrates through the narrow clearance between the frame arms.
Original photograph by Brumlista.cz
Kašpařík Plough
This brass instrument, played against the lips, shows that category boundaries are not always obvious at first glance. The playing position and the particular construction are what matter.
Photo: DAN MOI
Đàn môi
This thin Vietnamese instrument is placed against the lips, not the teeth. Its tongue is cut from the same piece of material as the frame.
Photo: NotABlanker, CC0
Kouxian
Some Chinese jaw harps combine several lamellae in a fan. The lamellae may have different tunings, allowing the player to move between them while playing.
Photo: Codell, public domain
What is the instrument called?
The term “jaw harp” is widely used in English today. You may also encounter the historical name “Jew’s harp” and many regional names, including khomus, maultrommel, guimbarde and đàn môi. The origin of some names has not been conclusively established.