Hi,
I think I saw someone demonstrating on Youtube that he used a (key) cord to hang his melodica from, from the grip. That made both hands available for playing. (More difficult where there’s more of a ridge on the left side, I guess.)
I tried this with the Hohner 36 I bought last week, and in itself this works. I’d probably would need a slightly more customisable cord, as I needed to bridge a 1cm gap, and would probably prefer not to have the melodica flat against my breast. But the concept seems sound.
Bye
Mysha