File:Tuning stresses copy.jpg

Summary
A graphic illustrating the relative stresses introduced into a drumhead by tensioning a single point. I took this image of my own drum and did the editing. It is part of the article Drum Set Tuning that is being submitted to Wikipedia under the same name. I have released this article and these images under GDFL. The notice on the site of the original article is at http://www.tunadrum.com/gnu.htm and the copyright notice accompanies each page to which it refers