29/01/2026
A 40-string lever harp is made up of hundreds of tiny metal mechanical parts. Each string has its own set of screws, metal pins, and moving components. If even one small part develops a problem, it can create a noticeable unwanted noise.
In this video, you can see the true cause of the noise. The issue comes from a screw on the third C string. Interestingly, the noise does not occur when the third C is played. Instead, it is triggered when the fifth (higher) C is played.
This happens because the vibration frequency of the higher C resonates with the loose screw. As the vibration continues, the screw slowly shifts, producing the noise we hear.
For this reason, when a harp produces buzzes. Systematic checking and patient diagnosis are essential. In a precision instrument like a harp, even the smallest change in a component can have a significant effect.
