キーと主和音の関係
Ab major Ab C Eb F minor F Ab C
Eb major Eb(G)Bb C minor C Eb(G)
Bb major Bb(D)F G minor (G)Bb(D)
F major F(A)C D minor (D)F(A)
C major C(E)(G) A minor (A)C(E)
G major (G)B(D) E minor (E)(G)B
D major (D)F#(A) B minor B(D)F#
A major (A)C#(E) F# minor F#(A)C#
E major (E)G# B C# minor C#(E)G#
B major B D# F# G# minor G# B D#

*カッコは開放弦