Time will tell. A device is usually manufactured to the lowest possible tolerance. We used to see this in fire investigations all the time, cheap parts, low expectations, poor testing.

My hypothisis is this, you watch how this is being played an you are blowing at a small hole. Now it's been 30 years since I took college level anatomy to qualify as an emergency medical tech, which was not at all as comprehensive as the a&p that people get now, however, I remember exhaled breath is over 90 percent water vapour which is why a person who is hyperventilating can loose so much water. And there exists in some measurable quantiies Hydrogen Peroxide and other gases, including particulate matter that forms part of the lining of your breathing system. And the temperature of the air expelled is always higher than ambient temperature unless you live somewhere very hot.

I'm curious is all. The exhalent is alkaline, (normally) and blown into such a small hole must have some deleterious effect. If I was starting to have problems with the thing I think I'd uninslall the applicaiton before sending it for warranty.

On the positive side the applicaiton looks interesting, I'm wondering how much practice you need in order to make it work, even if you have lots of various keyboard experience there must be a learning curve.

If I remember John Lennon played a melodica, there have been variations of that over the years, from button accordian models that I remember seeing. There was some jazzz player used one, I think Horner made them, a friend had one in high school.

John Conley
Musica est vita