I'm with DP on this one. I believe that it would not take long for some of the reeds to go our of tune. Maybe all but some. Harmonicas go out in this way.

harmonicas only go out because you are also
REALLY blowing or sucking to bend a note, putting
much more stress on things.

my 2c worth

wle.

I agree, but some button box players do the same thing and if you have some reed banks partially closed off When you put the old air compressor hold on the box. Well you know what happens.