Welcome at the website of SV Method: the Systematic and Visual method that makes melodic music theory practical. This method works with 1 system: when you know this system, you can play all sorts of scales without thinking and analyse all sorts of chord progression which you can use in all Western music. This system is explained in chapter 1. With the information of this method you can improvise, play solos, analyse music and write music. After learning chapter 1 you are free to choose which subject you want to go to.
Curious? Check out chapter 1!