[Kevin]

Lowboy,
Somewhere I have read (tried to find it again) that pump organ manufactures tuned their reeds sharp because they knew after being seated and under pressure they would play flat.

I don’t know if this is the case with accordion and harmonicas?
But it does seem the case with the new melodicas I buy they are sharp rather than flat?

I assume that pitch pipe builders get their reeds exactly right? How hard can it be?