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Overview Triads

A triad is a chord that consists of 3 different notes.






1. Major triad

Construction: root (1), major third (3), fifth (5)

Major triad


Structure Major Triad:

5 
 minor third
3 
 major third
1 


Notation: for ex. C


2. Minor triad

Construction: root (1), minor third (b3), fifth (5)

Minor triad

 

Structure Minor Triad:

 

5 
 major third
b3 
 minor third
1 

 

Notation: for ex. Cmin, Cm, Cmi


3. Diminished triad

Construction: root (1), minor third (b3), diminished fifth (b5)



Diminished triad

 

Structure Diminished triad:

 

 
b5 
 minor third
b3 
 minor third
1 

 

Notation: for ex. Cdim, C°


 

4. Augmented triad

Construction: root (1), major third (3), augmented fifth (#5)



Augmented triad


Structure Augmented Triad:

 
#5 
 major third
3 
 major third
1 

Notation: for ex. Caug, C+



5. Suspended triad

Construction: root (1), fourth (4), fifth (5)

Suspended triad


Structure Suspended Triad:

 
5 
 major second
4 
 fourth
1 

Notation: for ex. Csus, Csus4