Add Chord (Major add and madd)

Introduction

Add chord is a chord which an extra note are added.Additional note can be 2^nd 4^th  or 9^th .This chord is written like Cadd2.mean C major chord are added by 2^nd note from C major scale.Note added written by number,number represent index of scale of the note that added that associated with C major  chord.

Commonly,add chord like add2,add4,add9 is added to original triad chord.New chord has 4 notes,no longer can say triad,chord but quadrad !.Add 2 same with add9 because same additional notes involve,but 9^th note have a higher octave compared with 2^nd .

Add use usually major chord,some has minor,minor add chord is written like madd2 or madd6.Example,build Cadd2 from C major chord.C maj triad are  C-E-G,and C major scale,C,D,E,F,G,A,B.In this scale,D note is 2^nd !.Thus,D note should be added into C-E-G triad become C-E-G-D.Cmajor & Cadd2 do not have much of a different,when you play song,or create chord progression,play Cadd2 chord give more melodious compared to C major.

C : C-E-G

Cadd2 : C-E-G-D

Cadd4 : C-E-G-F

Table below show some  major & minor add chord,

Major add chord

Root	Major Scale	Major chord	add2 chord	Add4 chord
A	A,B,C#,D,E,F#,G#	A-C#-E	A-C#-E-B	A-C#-E-D
B	B,C#,D#,E,F#,G#,A#	B-D#-F#	B-D#-F#-C	B-D#-F#-E
C	C,D,E,F,G,A,B	C-E-G	C-E-G-D	C-E-G-F
D	D,E,F#,G,A,B,C#	D-F#-A	D-F#-A-E	D-F#-A-G
E	E,F#,G#,A,B,C#,D#	E-G#-B	E-G#-B-F#	E-G#-B-A
F	F,G,A,Bb,C,D,E	F-A-C	F-A-C-G	F-A-C-Bb
G	G,A,B,C,D,E,F#	G-B-D	G-B-D-A	G-B-D-C

 Minor add chord

Root	Minor Scale	Minor chord	madd2 chord	madd4 chord
A	A,B,C,D,E,F,G	A-C-E	A-C-E-B	A-C-E-D
B	B,C#,D,E,F#,G,A	B-D-F#	B-D-F#-C#	B-D-F#-E
C	C,D,Eb,F,G,Ab,Bb	C-Eb-G	C-Eb-G-D	C-Eb-G-F
D	D,E,F,G,A,Bb,C	D-F-A	D-F-A-E	D-F-A-G
E	E,F#,G,A,B,C,D	E-G-B	E-G-B-F#	E-G-B-A
F	F,G,Ab,Bb,C,Db,Eb	F-Ab-C	F-A-C-G	F-A-C-Bb
G	G,A,Bb,C,D,Eb,F	G-Bb-D	G-Bb-D-A	G-Bb-D-C