[Harp-L] How far can you tune up a reed?

[Bob Marsolais]

I have a couple of duplicate harps in the major tuning.  I'd like to try my
hand at retuning one of them to Country Tuning which means raising hole 5
draw by a semitone.  Having never tuned a harp before, how far up can you
retune a reed?

 

Thanks, Bob