Home / Forums / Melodica construction, repair and maintenance / Improving responsiveness of certain keys / Reply To: Improving responsiveness of certain keys Reply To: Improving responsiveness of certain keys February 26, 2014 at 1:36 am #1897 BenjaminParticipant Hi Rodrigo, thanks for the advice, I will try reducing the gap and report back here. Do you only do it for the affected reeds? Or will doing it for each reed improve the instrument as a whole?