Now that I look at the info sheet for Ballone, looks like the 37 key model will not be available in wood.
If the blow/suck mechanisms persist, then I’ll have know much more about it. The whole reason I love the Vibrandoneon is the richness of the octaves together. If the trade off is range for octaves, then it’s a no go for me.
Also, I realized that it shouldn’t be hard to make some sort of fan mechanism that seals over the mouthpiece connector to force air through the instrument. I’m not afraid of installing laptop fans in both chambers, but the unknown would be what that disruption to air flow would do to the sound.