Guitar Lessons

Guitar 101

Dominant 7th Chords

How are Dominant 7th Chords formed?

A Dominant 7th Chord is very easy to form. Just add the flatted 7th note to the major scale of parent chord.

Consider the C major chord. Any major chord is formed by combining the root note, the third note and the fifth note. So the dominant 7th chord of C major (denoted as C7) will be a combination of the root note, the third note, the fifth note and the flatted 7th note (see below).

Example #1
The C major scale is:
1 – 3 – 5 – b7 
C7 = C E G Bb

Example #2

The G major scale is:
G A B C D E F#
1 – 3 – 5 – b7
G7 = G B D F

Dominant 7th chords can be heard in blues, folk, & jazz music.They bring a dissonance sound to the music. Hence they often lead strongly to another chord, especially the root note chord.

Let’s take a quick look at a Dominant 7th chord in the form of a barre chord, using a G7 as an example. This is what it would look like.


January 1, 2012 - Posted by | Uncategorized

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