Jew's harp wis soft reed, nice deep sound with wide spectre but limited speed possibilities. The mechanics of the reed have only one way to strike - otherwise, if you do not play only at the maximum volume, there are uncontrollable bursts, and a outwards stroke generates constant out-of-the-ordinary sounds. An excellent instrument for slow relaxing playing of simple rhythms, without any expenses - the sound is produced extremely easy. Supersaturation masks most overtones in the controllable range.