Connect with us

Jazz Guitar Lessons

A Refresher Lesson on Double Chromatic Dominant Scales

Chuck Anderson

Published

on

Dominant 7th type chords – it’s fair to say that no other chord type has as much attention in jazz improvisation. Chuck Anderson provides a quick refresher.

Today is devoted to a less used pair of scales. These are the double chromatic dominant scales. 

An alteration is the sharping or flatting of scale notes such as Dominant #4 (aka Lydian Dominant). There can be two or more alterations within the same scale such as Mixolydian b2, b6 scale. This would be considered a double altered scale. In this case, 2 different notes or degrees are being altered ie sharped or flatted within the same scale.

In contrast to this, a double chromatic scale, flats and sharps the same note or degree. Because of this, the scale has 8 notes instead of the typical 7.

Advertisement

There are 2 scale patterns in common use.

#1) C Db D# E F G A Bb C

#2) C D E F Gb G# A Bb C

As you can see, both scales carry the 3 critical notes for the C7 chord. These notes are the root, third and flat 7th notes of a C7 chord (C E Bb).

Each scale can be used against a C7 chord.

If the chord is an altered chord such as C7b9 or C7#9, use scale #1

Scale #1 includes the b9 and #9.

If the chord is an altered chord such as C7b5 or C7#5, use scale #2.

Scale #2 includes the b5 and #5.

The use of this scale will give you a new sound for your dominant type solos.

More JGT lessons from Chuck Anderson.


Advertisement
Continue Reading

Join the JGT Newsletter

JGT Playlist of the Week

Updated Each Monday

See What's On Our Radar

Click Here

Trending