This is different because it deals with the most basic rule about succeeding. Every other rule and guideline is just a point based on this. Every other reason is an offshoot of this basic principle. It’s nothing new and has been said numerous times and a variety of ways. It needs to be mentioned again here though for all of you musicians out there. Mostly because I feel that musicians and artists are more familiar with this rule than most people out there yet don’t apply it to the other areas of their life. Most of all, they rarely apply it to their career.
This is the one that's used in all types of music from metal to dance. Some may think that it's a version of a minor chord progression but the main difference is the melody is a major scale played over the progression. A number of scales can be used over this progression; the major, blues and mixolydian scales are all available. This progression is used in two ways. First it's often used as the main idea in a rock song, usually played with a riff or reocurring line. It's also used in sequences where you would use a I-bIII-IV using the I chord and then transpose the entire progression up a fourth to be used over the IV chord. For example a E-G-A progression to a A-C-D progression.