Learn how to play A7 chord properly on the guitar in this easy lesson. A7 Chord is also known as ADominant7 Chord or ADom7.
A7 Or ADominant7 Chord Diagram
How To Play A7 or ADom7 Chord On Guitar
A 7 is a 4 strings chord. To play A 7 chord
- Place your Index Finger on Second Fret, Fourth String.
- Place your Middle Finger on Second Fret, Second String.
- Third and Fifth Strings are played open.
- First and Sixth String is not played.
Notes In A7 Chord
Notes played in A-7 Chord are A-C#-E-G.
- Root Note A is played on the 5th string of the guitar.
- C# note is played on the 2nd string and is the Major Third Interval of the A major scale.
- E note is played on 4th string of the guitar and is the Perfect Fifth Interval of the A Major Scale.
- G note is played on 3rd string of the guitar and is the 7 Interval of the A Major Scale.
A7 Chord Formula
Dominant 7 or 7th chords formulae is 1-3-5-b7.
To make a Dominant 7 or 7th chords, start out with the Root, Major Third Interval, Perfect Fifth Interval of a Major Scale. To this triad, just add the Flat 7th Interval of the Major Scale.
Accordingly, notes played in A7 or ADom7 Chord are A-C#-E-G.
The difference between A7 and AMaj7 chord is that in dominant chords, Flat Seventh Interval is played. While in Maj7 Chords, Major Seventh Interval is played. This change in 7th interval makes dominant 7th chord sound little dissonant, while Major7th chords sound consonant.
To learn about Intervals and Music Theory, checkout this lesson.