Major Triads For Guitar - Diagrams And Theory

A Major Triad is a three-note chord consisting of the root note (1), the major third (3), and the perfect fifth (5). It has a bright and happy sound, making it a crucial element in various musical genres. This guitar lesson will help you master them using different voicings (close and open).

SUMMARY

Types Of Triads

Major Triads Construction

Close Voicings

Open Voicings

Relation With Chords

Upper Structure Triads

PDF Methods

What Are The Four Main Types of Triads?

Triads are made up of a root (1), a third which can be major (3) or minor (b3) and a fifth which can be perfect (5), diminished (b5) or augmented (#5). Thus giving four qualities of triads :

Major triads are built of three notes : root, major third and perfect fifth.
Minor triads contain a root, a minor third and a perfect fifth.
Diminished triads are built with root, minor third and diminished fifth.
Augmented triads are built with root, major third and augmented fifth.

Symbols

MAJOR TRIADS
- Generally, no quality symbol is added
MINOR TRIADS
- "m" or "min"
DIMINISHED TRIADS
- "dim" or a degree sign "°"
AUGMENTED TRIADS
- "aug" or a plus sign "+"

Major Triad Chords - Charts and Guitar Fretboard Diagrams

How To Build A Major Triad?

Major triads are basically built by stacking the root, the major third and the perfect fifth of the major scale. As you can see in the chart below, the C major triad is made up of C (root), E (major third) and G (perfect fifth).

C major scale	C	D	E	F	G	A	B
Formula	1	2 (9)	3	4 (11)	5	6 (13)	7
C major triad	1	X	3	X	5	X	X

Major Triads | Close Voicings | Root Position and Inversions

What's An Inverted Chord?

An inverted chord is a chord whose notes are arranged so that a note other than the root is in the lowest voice. In other words, the notes of the chord are in a different order.

In the following diagrams you will find four root positions related to the third, fourth, fifth and sixth strings. Each root position occurs two inverted chords with the third or the fifth in the bass. That gives 12 closed positions for one chord.

What Is A Closed Chord?

Closed guitar chords are those where the root and the inverted positions, fit within the space of one octave. You have to practice and master these twelve positions in twelve keys. You also have to be able to name each chord that you play.

The four guitar diagrams below show you how to play close voiced major triads with basses on the 6th, 5th, 4th and 3rd string.

Root position	R	3	5
1st inversion (third in the bass)	3	5	R
2nd inversion (fifth in the bass)	5	R	3

Open Voiced Major Triads

What Are Open Voiced Triads?

Since major triads are built with 3 notes, it is possible to drop the second highest note (the middle note) of a major close voiced triad up an octave to produce what will call a drop 2 voicing referred to as open voiced triad. It is a very much appreciated technique by composers and arrangers.

This concept can be applied to any chords as minor, major, diminished and augmented. The chart below show you three major open voiced triads in connection with the three guitar diagrams below.

Root position (root in the bass)	R	5	3
1st inversion (third in the bass)	3	R	5
2nd inversion (fifth in the bass)	5	3	R

Let's take an example with a close C major chord. It is built with a root (C), a third (E) and a fifth (G). By dropping the second highest note (E) up an octave, we obtain a new sequence of notes : C, G and E respectively the root, the fifth and the third. This is a C major open voiced triad chord. Bar 1

In bar 2 the second highest note of the first inversion of C major is dropped up an octave. That gives E (third), C (root) and G (fifth), referred to as an open C major chord third in the bass (C/E).

As you can see in bar 3 , the second highest note of the second inversion of C major is dropped. Thus giving G (fifth), E (third) and C (root). This is a C major open voiced triad with the fifth in the bass. (C/G).

Relation Between Chords and Major Triads

The chart below show what notes are highlighted when a major triad is played over a specific degree of a given chord. Example with the first row of the table : when playing a a major triad starting on the second of C major (D) we highlight the 9, #11 and 13 of C.

CHORD TYPE	MAJOR TRIAD STARTING ON	TRIAD ANALYSIS	CHORD	TRIAD
major	2	9 #11 13	C	D
major	5	5 7 9	C	G
major	3	3 13 1	C	F
MAJ7	5	5 7 9	CM7	G
MAJ7	2	9 #11 13	CM7	D
MAJ7	3	3 #5 7	CM7 (#5)	E
min	b3	b3 5 b7	Cm	Eb
min	2	9 #11 13	Cm	D
min	4	11 13 1	Cm	F
min	7	7 9 11	Cm	Bb
min	5	5 M7 9	Cm(Maj7)	G
min	M7	M7 b3 #11	Cm(Maj7)	B
min7	2	9 #11 13	Cm7	D
min7	b3	b3 5 b7	Cm7	Eb
min7	4	11 13 1	Cm7	F
min7	b7	b7 9 11	Cm7	Bb
7	2	9 #11 13	C7	D
7(sus4)	4	11 13 1	C7sus4	F
7(sus4)	b7	b7 9 11	C7sus4	Bb
7#9	#9	#9 5 b7	C7#9	Eb
7b9	6	13 b9 3	C713b9	A
7alt	#4	#11 b7 b9	C7alt	F#
7alt	#5	b13 1 #9	C7alt	Ab
m7b5	2	9 #11 13	Cm7b5	D
m7b5	4	11 13 1	Cm7b5	F
m7b5	6	b13 1 b3	Cm7b5	Ab
m7b5	b7	b7 9 11	Cm7b5	Bb

Upper Structure Major Triads

Here below you can see (and hear) what tones are highlighted when playing the twelve major triads over the same bass note (C). The lower stave show the bass note (C) whereas the higher stave show the major triads. Example with the second bar : playing a Db major triad (Db-F-Ab) over C brings out the b9, 11 and b13 (or #5) of C.

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