Major 7 & minor 7 Chord

 Introduction 7^th  Chord

What is seventh chord ? this chord is use commonly in jazz music.All progression is used as major 7 chord.There are 9 type of 7 chord such as major 7^th ,minor 7^th ,dominant 7^th ,minor-major 7^th  ,diminished 7^th ,half-diminished 7^th ,diminished major 7^th ,Augmented 7^th & Augmented major 7^th.But the main 7^th chord can be major,minor,diminished or augmented

In this section,we will focus about major 7 & minor 7 chord.How to create this 7 chord from the scale.To create major 7 & minor 7 chord from scale,use formula below :

Major 7 : 1-3-5-7

Minor 7 : 1-b3-5-b7

Major 7 is written as Maj7 (example Cmaj7) while Minor 7 is written as min7 (exampleAm7). But, dominant 7 is written as 7 after chord (example A7,B7,C7).Dominant 7 & other 7 type of 7 chord will be discuss on next or other chapter.

 

Major 7 Chord

Major 7 chord is derive from original major chord.it is different from Dominant 7 chord that has combination major & minor 7 interval.maj7 has only major interval notes in main scale,it has 7^th  major interval notes that put into the chord to produce maj7 chord.Examples, to create Cmaj7 from C major chord.Refer to main C major scale : C,D,E,F,G,A,B.Create C maj chord triad C-E-G.Then put 7^th interval from Cmaj scale into Cmaj chord.7^th notes in this scale is B note.So, interval is C-E-G-B.That is Cmajor chord !.Same method with other chord.

Step 1 : What Major 7 chord u want to create ?

Example : Cmajor7

Step 2 : List of all notes from scale that u choose & indentify 7^th note in this scale(red colour)

Example : C major scale (C,D,E,F,G,A,B)

Step 3 : Create ‘Major’ chord interval from scale selected (1-3-5)

Example : Cmajor chord (C,E,G)

Step 4 : Put 7^th interval from scale into selected chord(7^th interval : B note)

Example : C-E-G + B = C-E-G-B (1-3-5-7)

Now new C major7 chord ! not C7,this is dominant 7!.

Table below show some Maj7 chord created using step above :

Root	Major Scale	Major chord	Maj7 chord
A	A,B,C#,D,E,F#,G#	A-C#-E	A-C#-E-G#
B	B,C#,D#,E,F#,G#,A#	B-D#-F#	B-D#-F#-A#
C	C,D,E,F,G,A,B	C-E-G	C-E-G-B
D	D,E,F#,G,A,B,C#	D-F#-A	D-F#-A-C#
E	E,F#,G#,A,B,C#,D#	E-G#-B	E-G#-B-D#
F	F,G,A,Bb,C,D,E	F-A-C	F-A-C-E
G	G,A,B,C,D,E,F#	G-B-D	G-B-D-F#

Minor 7 Chord

Concept to create minor 7 chord same as major 7 chord.Minor 7 is a chord that as 7^th interval minor note additional in this chord.7^th note come from original minor scale.Examples to create Am7 chord from Am chord & scale.Am scale  : A,B,C,D,E,F,G.So,7^th notes is G.To create Am7 chord.put G note on Am chord A-C-E produce new Am7 chord : A-C-E-G

To create other minor chord,use same step as Am7 or maj7 refer to formula mentioned earlier.

Table below show some Am7 chord created using step above :

Root	Minor Scale	Minor chord	m7 chord
A	A,B,C,D,E,F,G	A-C-E	A-C-E-G
B	B,C#,D,E,F#,G,A	B-D-F#	B-D-F#-A
C	C,D,Eb,F,G,Ab,Bb	C-Eb-G	C-Eb-G-Bb
D	D,E,F,G,A,Bb,C	D-F-A	D-F-A-C
E	E,F#,G,A,B,C,D	E-G-B	E-G-B-D
F	F,G,Ab,Bb,C,Db,Eb	F-Ab-C	F-Ab-C-Eb
G	G,A,Bb,C,D,Eb,F	G-Bb-D	G-Bb-D-F