Tone hole at 12.5 inches. These plots all have a dip in the begining, which makes it hard to say where the antinodes or nodes are at the start. In all of the odd graphs the amplitude is rising to an antinode, while the evens end on a node. In these plots, the odd plots have a similar shape to the even plots that proceed them. The evens tend to be smoothe and seem to be sloping down towards antinodes. The odds tend to level off and even rise a little at the very end. Special attention should be paid to the shape of the even harmonics. From 2nd-6th there is one hump, two humps, and three humps.