I’ve been looking for this kind of melodica for ages — it’s the kind that Augustus Pablo played. Hohner piano 27 melodica – called piano because the earlier models had buttons rather than an actual keyboard. It has a very warm tone, not bright at all. I really want to play it in Roaring Lion but it’s a matter of blowing it well into the mic. The band is loud and this kind of acoustic instrument can just drown unless it’s really amplified. Found it on Amazon, from a second-hand shop in the U.S.

Augustus Pablo. I took this photo from the excellent site melodicaworld.com.