Key signatures and chord symbols are doors to facility at the keyboard – doors too often locked by insufficient understanding. This guide unlocks them with clear and simple explanations, while also giving clear descriptions of major and minor scales, guidelines for scale fingering, chord charts which include major, minor, augmented, seventh, ninth, eleventh, major seventh, major ninth, minor seventh, sixth, minor sixth and diminished chords in all positions, formulas and symbols for altered chords (a simplified approach to forming complex chords and a glossary of music terms and chord spelling chart.
fr 
