So I saw this music video on YouTube. The 4 Cord Song by the Axis of Awesome. Basically the song is about the basis behind a lot of popular pop songs. And naturally I saw great little similarities to magic. Basically if we master our 4 cords there is so much we can do. So it should be crucial to learn the 4 cords. Sleight of Hand, Presentation, History and Business. If you can do those, your success in magic is sure.