Recalling that button number one is the lowest pitch
button, and closest to your chin: The first note of a “C” scale will be
found on button number three on the push.
There is a notation system that lets us write that we want
button number three to be held down while the bellows is pushed.
The nomenclature for pushing the bellows while holding
down a button is to simply refer to that button by its number. So,
to indicate that you are to hold down button number three while the
bellows is being pushed inward, we simply write it as: 3.
Now, say we want to have you pull the bellows while
holding down button number three (and, we do want to do that).
We write it as: 3’
Note the easily overlooked apostrophe! That
apostrophe means “pull” the bellows out as you hold the button down.
You might try this a couple of times to get comfortable
with all this “push-pull” stuff! OK? Ready? (Drum roll please
..) Here’s the entire scale, the foundation of western music as we know
it: