This video from TyingItAllTogether, brings us yet another tutorial explaining how to create a unique type of knot, called the "guitar bar". This knot is so named for it's similarities to the neck and fret board of a guitar. To make this knot, you'll need several feet of rope. For every inch in length of the guitar bar, you will need an extra foot of rope. So 12 inches = 12 extra feet of rope to spare, to make this creation.