Easy Comping Over Hard Changes - Taking It From the Top
Copyright 2003, Larry P. Schrof

Let's say I asked you, as a rhythm guitarist, to comp through the
following chord changes: C7#11 , B7(#5, b9) , Gmin6/Bb , A6(9).  If
you're like most players, you'll be thinking about two primary things
as you play each chord. First, you'll decide where you want to play
the chord on the fretboard, and what note you want to build the chord
off of. (Many players choose to build from the root.)  Next, you'll
decide which voicing you'd like to use for the current chord.

While this is a very prevalent approach to guitar comping, it has some
drawbacks. First, it hampers your creativity. This is because you are
mentally focusing on the root of the chord. If you are comping and see a
chord symbol such as 'DbMaj7b5', your brain immediately kicks into "Db
mode". The intervals that your brain and fingers seek out will all be in
reference to that Db. Another drawback is that we often don't know many
voicings for certain chords.  (How many voicings do you know offhand for
a B13#11 ?)

I'd like to show you a different approach that can greatly simplify
things for you. The best part is that it will help you sound FRESH.
It opens up both your physical mobility and creativity.  Once you
invest some initial effort, you'll be able to tear through some insane
chord changes and sound fantastic.

I call my approach "top-down chord reduction". (I"m sure many others
have used this approach before I discovered it, and called it by another
name. I just like to pretend I'm special.)  Normally, our ears think
from the root up, and as guitar players, we tend to voice chords from
the root up. With top-down chord reduction, however, we mentally reverse
things. We only look at the upper 3 (sometimes 4) notes of a chord.

Let's take an example chord - DbMaj9(#11). Whew - that's quite a chord!
Let's break it down from the top. The top three notes are C (the major
7th), Eb (the major 9th), and G (the #11). Hmm... C, Eb, and G. Hah -
nothing more than a C minor triad! While you may not know a lot of
voicings for a Maj9(#11) chord, I bet you can whip out a lot of C minor
triads! For example, to start sounding slick right away, simply pick a
set of 3 strings and start comping up and down the inversions of a C
minor triad. (Guitar Proficiency Level 2 anyone?)  Of course, you'll
need some sort of accompaniment to hear the context and effects of your
triadic comping.

It gets even better. Take a look at an Amin(maj7) chord. The top three
notes are C, E, and G# - a C augmented triad. Why is this great for
rhythm guitarists? Since augmented triads are very symmetrical (can be
moved up and down the fretboard without changing finger shapes), they
are easy to lay down some mean comps with. Similarly, if we
look at the top four notes of a G7b9 chord, we see a Bdim7 chord.
Like augmented triads, dim7 chords are symmetrical, and easy to move
up and down (IE, comp creatively) with.

In some cases, you may want to move notes from the lower part of the
chord toward the top. This can help you form triads you already
recognize and know how to play. In the case of a C6(9, #11) chord, I'd
mentally move the A (the 6th) to the top of the chord. Then, I can think
about D major triads when comping over this chord.

All that remains, once you know the process, is to map out the triads
for each chord and get creative. Try wide-spread voicings. Walk up and
down the neck with inversions. Try double-stops. Throw in some open
strings where possible for a different sound. Experiment.

Finally, here's a chart which I hope will be of use to you.  The left
column is a list of chord types. (I used C as the tonic.)  The middle
column is the triad or chord you can use to comp over them.  The right
column is perhaps the most useful. It is what you can memorize to
determine what triad to play over a given chord type.

Chord           Upper triad	Relation to chord root
-----           -----------     ----------------------

Cmin7b5         Eb minor        Minor triad, up minor 3rd
C7b9		dim7 chord	Dim7 chord, up major 3rd
C7#9            Eb major        Major triad, up minor 3rd
C7(#5,b9)       C# minor        Minor triad, up 1 half step
C7(b5,b9)       Gb major        Major triad, up a tritone
C7(#5, #9)      Absus2          Sus2 triad, down 2 whole steps
C7(b5, #9)	Eb minor        Minor triad, up minor 3rd
Cmaj7b5         Esus2		Sus2 triad, up major 3rd
Cmaj7#5         E major         Major triad, up major 3rd
Cmin(maj 7)     Eb augmented	Augmented triad, up minor 3rd
Cdim(maj 7)     B major		Major triad, down 1 half step
C9              G minor         Minor triad, up perfect 5th
Cmaj9           G major         Major triad, up perfect 5th
Cmin9           G minor         Minor triad, up perfect 5th
C11(b13)        Bb7             Dom7 chord, down 1 whole step
C13             Bbmaj7          Maj7 chord, down 1 whole step
C13#11          D major         Major triad, up 1 whole step

Overall, the goal of this approach is to simplify the mental process
of rhythm comping so that you can be more creative. Your overall
success depends on two main things - your knowledge of triadic
voicings, and your musical taste.

I hope this concept freshens up your sound and helps take your comping
to the next level. Good luck, and practice hard.