Harmony

Harmony is a valuable aid for musicians playing mostly jazz. All scales are represented and this, in all keys. Major scales, minor, blues, increased, diminished, pentatonic, etc. ...

All chords are also represented in all keys. Major, minor, 7th, 9th etc. .. They are represented in the form of american chords (ex : CM7).

Modal table also.

Hamony is a remarkable tool to aid in jazz improvisation.