Home / Forums / Melodica construction, repair and maintenance / Pimped Yamaha P32D / Reply To: Pimped Yamaha P32D Reply To: Pimped Yamaha P32D February 28, 2016 at 3:57 am #6861 Shannon MParticipant Daren, When you say the chambers are too small, do you mean too narrow, too short, too shallow, or a combination? Thanks, Shannon