Many people think a mouth-harp is a harmonica or blues-harp. But the mouthHarp is actually an old name for the Jews-harp, a small overtone-instrument. This MouthHarp is held to the opened mouth while plucking the lamella which makes the basic tone resonate in the mouth cavity, creating a spectrum of overtones.
There will be lot's of stuff about the Jaw-harp on this page in future.
Thanks for visiting & see you later!