There are only 12 major chords, 12 minor chords, 12 diminished chords, and 12 augmented chords. That makes 48. Then each one can be turned upside down (inverted) 3 times. Three times 48 is 144. These are the basic 12 dozen chords you need to know. This course will show you, in the course of one hour, how to form and play all 144 chords, and as a bonus, will also show you how you can form hundreds of other chords from the basic 12 dozen. Do you think that might be of value to you as a musician? You'll get a DVD, a CD and a chord chart. Combo #9