I’m delighted to see that you have joined the forum, jazzman. Your comments and performances in other forums and in videos and audios have stimulated my interest and contributed a lot to my understanding of the melodica. You are an innovator and, so far as I know, the first professional melodica educator. Perhaps we will hear more encouraging news about bass melodicas and Jazz from Melodica-Me, as time goes on. He is the man to figure it out.
I notice that you are using the Hammond 44, although I think I remember that you were disappointed with it when you first bought it.