Home / Forums / Melodica construction, repair and maintenance / Reed Failure & Gapping / Reply To: Reed Failure & Gapping Reply To: Reed Failure & Gapping January 4, 2014 at 3:04 pm #1372 albalexParticipant hi is what I noticed when I blow strong in my Pianica 37D …. the sound will stop but only in the eighth medium-low …..