Home / Forums / Melodica construction, repair and maintenance / Melodica sound improvment? / Reply To: Melodica sound improvment? Reply To: Melodica sound improvment? July 12, 2014 at 10:09 am #2747 JantanParticipant Many frequencies are bad sounding. Listen plastic drum and real wood drum. Then listen wood drum with plastic head and with drum head made out of animal skin. Listen plastic ukulele and wood ukulele. Then I thking that you get what I mean.