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, additionally providing: 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 * a glossary of music terms and chord spelling chart.