Quote:
Originally Posted by PH  Actually, the reason this works is not so much that the lead pipe gets longer. Instead it is the fact that the break in the taper of the tubing that occurs between the end of the mouthpiece and the start of the lead pipe itself hits at a crucial spot in the wave form (due to wave length) of certain pitches more than others. |
Whoa! Check out the big brain on PH! Exactamundo!
If you're curious enough, you can measure the gap using a wood match and a felt tip pen. Put the match in the lead pipe and mark the stopping point. Do the same with the match and line it up with the insertion mark on your mouthpiece. The difference between the two is your gap.