Blues Guitar Chords – What Makes Up The Most Common Blues Guitar Chords?
Monday, December 7th, 2009
Blues guitar chords are not really different than the chords you would find in many styles of music. What make blues music and blues guitar different is the fact that most of the chords are of the dominant family instead of the major or the minor family. In this article I’ll explain the difference and point you in the right direction to learn more blues guitar chords and spice up your blues guitar playing.
All chords in music are divided into 3 families: major, minor, and dominant. Altered chords usually get lumped in with the dominant chords also. All chords are built from the 1st, 3rd, and 5th notes of the major scale. As the chords get bigger, we can start to add in the 7th tone as well, and even notes from the second octave of the scale. This would mean the 9th is really the same as the 2nd, the 11th is the same as the 4th, and the 13th is the same as the 6th. An interesting side note is that a 13th chord actually has every single note in the scale.
Triads are the building blocks of all chords. A triad is a chord that contains the requisite 1st, 3rd, and 5th and nothing more. The major triad has the 1st 3rd and 5th with no alterations. A minor triad has the 1st and 5th, but the 3rd note is flatted. To flat a note means to lower it by 1/2 step. B would become Bb for example, and C# would become a C.
The major chord family is notated by the word “major” in the name of the chord. A major7th chord has a 1,3,5, and 7 from the major scale. A major9 chord has a 1,3,5,7, and 9 (same as 2 but up an octave.) Major11 adds an 11, and major13 adds the 13 on top of that.
The minor chord family has the word “minor” in the name of the chord. These chords all have 1,b3, and 5 from the minor triad. A minor7 chord has a flatted 7 as well. Minor9 adds a 9 (not flatted), minor11 adds an 11, and minor13 adds a 13. Only the 3rd and 7th are flatted in all cases.
The dominant family is the most common in blues music. The dominant family is the default case. So C7 is really C dominant 7 even though it’s usually not notated that way. These chords all have a 1,3,5, and a flatted 7th. The 9th chord adds a 9, the 11th an 11, and the 13th a 13. In all cases the 7th is the only flatted note.
The most common blues guitar chords are the 7th chord and the 9th chord. The 7th can be used for hundreds of songs. The 9th is a great substitution for the 7th chord and can add quite a bit of spice to your playing. The 11th and 13th chords can take a bit of getting used to.
Obviously, on the guitar, we have to leave some notes out to play an 11th or 13th chord because we can’t play 6 or 7 notes at a time. Even most common chords that have all 6 strings have some duplicate notes to make them playable. Getting used to playing all of the 7th chord and 9th chord shapes will get you well on your way to great blues guitar playing.




