Chord Theory

Chord Theory

In every musical scale(Major or Minor) there are three principal chords, which are known as tonic, dominant and sub-dominant.

Each major scale also has a relative minor scale.

Chords of both scales may be used for each scale of them.

For example C major scale has C, G and F chords. Am is the relative minor scale  to C major. Am scale has Am, E and Dm chords. Thus all these six chords may be used in a song  whether this is in C scale or in Am scale. 

So you need to  learn chords of a major scale along with chords of its relative minor scale.

Major Scale				Relative Minor Scale
	Tonic	Dominant	Sub-Dominant		Tonic	Dominant	Sub-Dominant
C scale	C	G7	F	Am scale	Am	E7	Dm
C#/Db scale	C#/Db	G#7/Ab7	F#/Gb	A#m/Bbm scale	A#m/Bbm	F7	D#m/Ebm
D scale	D	A7	G	Bm scale	Bm	F#7/Gb7	Em
D#/Eb scale	D#/Eb	A#7/Bb7	G#/Ab	Cm scale	Cm	G7	Fm
E scale	E	B7	A	C#m/Dbm scale	C#m/Dbm	G#7/Ab7	F#m/Gbm
F scale	F	C7	A#/Bb	Dm scale	Dm	A7	Gm
F#/Gb scale	F#/Gb	C#7/Db7	B	D#m/Ebm scale	D#m/Ebm	A#7/Bb7	G#m/Ab7
G scale	G	D7	C	Em scale	Em	B7	Am
G#/Ab scale	G#/Ab	D#7/Eb7	C#/Db	Fm scale	Fm	C7	A#m/Bbm
A scale	A	E7	D	F#m/Gbm scale	F#m/Gbm	C#7/Db7	Bm
A#/Bb scale	A#/Bb	F7	D#/Eb	Gm scale	Gm	D7	Cm
B scale	B	F#7/Gb7	E	G#m/Abm scale	G#m/Abm	D#7/Eb7	C#m/Dbm

1.Major Chords

2.Minor Chords

3.7th Chords

4.Arpeggios

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