As a first step towards the construction of a Silent Melodica prototype, I have assembled my own Midi Melodica:
The EWI sound banks are already setup for breath controlling, otherwise we must change the MIDI CC sent by the breath controller.
Sforzando offers a built-in MIDI merge, so both the keyboard and the breath controller directly control the sound without any further software.
I will post a video as soon as possible. For the moment, I am very happy with the responsiveness of the whole system.