Thanks for the info. Do you know what could cause the noise that I hear. It’s a bit like when you raise the volume of the microphone too loud. This is not happening all the time on the same notes. But the weird thing about it is that it’s not so loud so people around me don’t hear it. I don’t think the problem comes from the reads. Maybe it’s because of the moisture inside? Hopefully this is not because of a drop on the floor. Can the case (back of the keyboard) protect the internal of the instrument when it happens. I guess I’m not the only one who accidentally dropped a melodica on the floor.