# "flute" hole size and spacing

I've got a clarinet mouthpiece and some pvc pipe...25mm but i'm sure I can adapt it bigger if necessary.

Is there some elegant equation (like where the natural harmonics on a guitar lie) to calculate the spacing and diameter of the finger holes for chromatic tuning?

Is there some elegant equation (like where the natural harmonics on a guitar lie) to calculate the spacing and diameter of the finger holes for chromatic tuning?

Or maybe this page on the "plumber's pipe" would be useful?

Plus, there are a whole slew of flute-making links here.

Start with http://www.markshep.com/flute/Pipe.html for rough length and size of hole. Some adjustment will be needed if you want to get close to a clarinet, due to the conic horn and tube...