Dominant 7 Chords
So far we have looked at major and minor open chords. Some of these chords can be made into dominant seventh chords by changing the shape of the chord on the guitar. Dominant 7 chords (often called sevenths) are built by adding the minor seventh note of the major scale to the major chord. For example the A major becomes A dominant 7th if you add a G note to the chord
The A7 Chord
The open A7 chord comes in two shapes. Both shapes consist of the same notes that make up the A dominant 7th chord. The first shape adds a finger, changing the open E (1st string) to a G and creating the minor seventh in the chord. The second shape removes the note A on the 3rd string and therefore becomes G which is the open string. In this way both shapes have added a G to the A major chord to become A dominant 7. The second shape is shown below:
Exercise:
Play the following:
So far we have looked at major and minor open chords. Some of these chords can be made into dominant seventh chords by changing the shape of the chord on the guitar. Dominant 7 chords (often called sevenths) are built by adding the minor seventh note of the major scale to the major chord. For example the A major becomes A dominant 7th if you add a G note to the chord
The A7 Chord
Play the following:
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