More Blues Tools
Advanced Blues Chords, Vibrato, Sliding 6ths Riffs
“I was told when I started to play that simple
music is the hardest music in the world to play.
And blues is simple music.” Albert Collins
Sessio n 4: More Blues Tools
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Advanced Blues Chords
This session covers many of the more advanced chord forms that are common in the
blues. Primarily, it looks at 9th chords and 13th chords. These richer sounding chord
forms really add a lot of color to your blues playing as well as multiply your options as
a guitarist when playing chords to the blues.
9th Chords
Ninth chords are built like the dominant 7th chords described in Session 1. But a
ninth chord adds one more note to a 7th chord—the interval of the 9th. The 9th step
is the same as the 2nd step. So, in the key of C the 9th would be the note D.
Ninths can be added to major 7th, minor 7th, or dominant 7th chords. For example,
a dominant 7th chord would have the formula 1-3-5-b7 and a dominant 9th chord
would be 1-3-5-b7-9.
In the key of C, a C9 would include the notes C-E-G-Bb-D.
The Major 7th Rule
When the word “major” is in the chord name then the 7th in the chord is unaltered.
But if “major” is not in the title then the chord has a flatted 7th. (The only exception
to this rule is the fully-diminished chord which would have a double-flatted 7th.)
For example, a Cmaj7 has an unaltered 7th step—1-3-5-7. A Cmaj9 has an unaltered
7th step—1-3-5-7-9. But a C7 (no “major” in the chord name) has a flatted 7th—1-3-
5-b7. And a C9th also has a flatted 7th—1-3-5-b7-9.
Objectives
- Learn 9th, 13th, and
half-diminished chord
forms. - Understand the half-
diminished chord
substitution. - Hearing the difference
between the major 6th
and the dominant 7th. - Playing the sliding 6ths
riff.
Key Ideas
Advanced chords use a
flatted 7th unlessthe word
“major” is in the chord
name.
When the word “major” is
in the chord name then
the 7th is unaltered.
You can substitute a 9th
chord for any 7th chord.
Blues Guitar with Steve Krenz 47 http://www.learnandmaster.com/bluesresources