Do you know how to form major, minor, diminished, augmented and lots of other chords? That's good, but if I tell you to play a G sharp diminished seventh in second inversion, can you play it without hesitating? You don't want to ask friends or family all the time to call out chords for you to play? You like to play from lead sheets or fake books but you need some more chord practice? Then this is the program for you.