$2+
I thought I'd offer the tab for this one since it's got a couple of new ideas. I can't stress this enough though: go through the video a bunch of times before grabbing this tab. You really can do it without it. Really! I don't mind to take your money, but you'll learn so much more just struggling without the tab.
I do get it though, sometimes the tab helps things make sense. If that's the case for you, have at it, but ditch it as soon as you get the tricky parts under your fingers. :)
Yup... it's just a dollar, but hey, feel free to pay more; it won't be unappreciated. My cats thank you. :)