Chris Graham is prototyping a modular breath-controlled instrument –
This is the finished design of the main types of MultiWind instruments:
– The Mini Instrument (payable in many styles including brass, harmonica and breath controller).
– The Woodwind style instrument, which is convertible from the Mini Instrument by snapping on the Finger Unit.
I really like the control placement(under thumbs, etc) learn more details on his Flickr photostream