This little gem has been making its way around my facebook musician circles. It was first created by the web comic Odd Quartet, posted on March 22nd, 2011. The original post can be found here. I've instantly added them to my RSS feed, as should you.
My students may find this taped to the studio door, as well I will probably put it up at various locations throughout my house. I should make it wallpaper on my iPad.