Welcome to the forum. Say before I offer my idea of the perfect melodica, can you tell me a little bit more about yourself? Do you work for one of the big music companies? Suzuki, Yamaha, or Hohner? Are you a start-up or custom builder?
I have what I think are some great ideas for the ultimate blues melodica. However, I think it would be helpful to know who I am speaking with before sharing. Maybe you could take a few minute and fill out your Melodica World profile or tell us about yourself.