Over-complicated layout
The information was there, but when considering the layout of a piece like a tutorial, try to make it flow. I want to see a piece telling me the steps in order. I don't like to be treated like someone who does not understand the concept that page 2 follows page 1 and that every time I've seen a page, I need to go back to the contents. Yes, the contents option is great, but there should be an option to just continue.
... Oh, it does. I'm sorry, the buttons got confusing, by putting B and F on them - why not have arrows, pointing one way and another? Yes, I understand that your tutorial covers buttons and you need to show off that you can make them, but designing functionality into the button really helps. Hell, even if it said "forward" and "back", this would be a step forward on making it more user friendly.
I'm not sure about the choice of music, but thankfully, you had given us a pause button, so thank you for the small mercy there.
[Review Request Club]