The guitar unlike some instruments has a wider harmonic range, one of its advantages over the myriad of instruments out there. Learn to exploit this feature and play some very interesting and beautiful chords to enhance your song playing. 

Learn to add extensions such as 7th, 9th etc the right way in order to create very mellifluos sounds that enhance your music and your time with your instrument. 

If you already know basic chords properly on the guitar for accompaniment this is the course for you. Knowledge of harmony will accelerate your learning through out this course. 

If you are in a band for example and if there is already someone playing the chords on another guitar you can use this system and play chords above that to instantly make your arrangments sound great. You would only have to use three to four stings in order to achieve this beautiful effect.