My Yamaha DX-27S came with one of those breath controllers.

OMG....!!! What a nightmare to try to use it.

First, there were only certain of the patches in the synth that responded to the breath controller in the first place.
But the worst thing was, to get it to work and actually effect the sound, you had to blow really, really hard. I tried to do a horn part one day and nearly passed out from hyperventilating while trying to get that thing to do something.

It's now setting in the bottom drawer in a tangle of other cords collecting dust. Hopefully they wised up and made the next generations more sensitive.

You can find my music at:
www.herbhartley.com
Add nothing that adds nothing to the music.
You can make excuses or you can make progress but not both.

The magic you are looking for is in the work you are avoiding.