UPDATED
Apr 6, 2012
Harmonic Analysis - Scale Selection
Vertical and Horizontal scale selection.
PUBLISHED: Apr 6, 2012 UPDATED: Apr 6, 2012 • VIEWS: 0 • LESSON CODE: MLRMAe-10 •
Instruments: ukulele ANY music Subjects: advanced • intermediate • theory • scales • improvisation
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Harmonic Analysis - Scale Selection
Harmonic Analysis is the understanding of the functional sequence of chords. It is the process used to analyze the harmonic structure of a progression, song or composition. This analysis is then used to make scale selections for improvisation and chord substitution.
This lesson covers the vertical and horizontal scale selection.
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Once a harmonic analysis has been completed then scale selections can be made. These scale selections can be either vertical and horizontal choices.
Vertical Scale Choices
This is a scale per chord approach. When a new chord is encountered the scale is changed based on the chart below. This is a basic scale selection approach. Additional scales can be played against these chords using the same principles that are used with chord substitution (see the Substitution Principles chapter).
Chord Type |
Basic Scale (Starting on Root) |
|---|---|
Major |
Ionian (Major) |
| Ionian (Major) Lydian | |
m7 |
Dorian |
| Aeolian (Natural Minor) | |
| Harmonic Minor | |
mL7 |
Tonic Minor |
m6 |
Dorian |
7 |
Mixolydian (Dominant) |
Diminished 7 |
Diminished |
Augmented 7 |
Whole Tone |
Horizontal Scale Choices
Scale choices can be made based on the overall tonality of a progression or portions of a progression using horizontal scale choices. The scale will stay in effect until the analysis requires a different scale.
Here are the scale choices applied to the six harmonic principles.
Full Diatonic Chords
Full Diatonic Major
- Use the Major scale of the I chord
Full Diatonic Minor
- Use the Natural Minor scale of the I chord on I and III chords
- Use the Harmonic Minor scale of the I chord on V and VII chords
- Use the Natural Minor scale or Harmonic Minor scale of the I chord on II, IV, and VI chords
Sample Scale Choices for II V of a II V I
- Harmonic Minor of the I chord traditional sound
- Locrian of the II for a more contemporary sound
Partial Diatonic
Use the vertical scale per chord approach.
- For Seventh chords resolving up a perfect fourth (or down a perfect fifth) to a major chord type use a Mixolydian scale.
- For Seventh chords resolving up a perfect fourth (or down a perfect fifth) to a minor chord type use a Mixolydian -2 -6 scale.
Internal Modulation
Unresolved
Cycle
Chromatic
- For Seventh chords functioning as a bII7, bIII7, bV7, bVI7 or bVII7 use a Mixolydian +4 scale.
Alternate Scale Choices
Alternate scale choice should be based on the same principles as chord substitution.
The Lydian Scale Uses vs. Ionian Scale
If a major chord is not in a full or partial diatonic progression then the Lydian scale is the better vertical scale choice.
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Related Lessons
Related Lessons for Harmonic Analysis - Scale Selection at this time.
Harmonic Analysis Lesson Series • Updated: Jan 6, 2020
Harmonic Analysis ( HA ) is the process used to determine the harmonic function of chords within a chord progression. A chord progression is defined as a sequence of chords, each chord has a root and has a particular chord type. The relationship of a chord's root to a scale determines its function within that scale's tonality. Once a chord's function is identified, scale selections along with chord and scale substitutions can be made. This process is called Root Movement Analysis ( RMA ). This series of lessons are extracted from my book for use with individual private and on-line students. Each lesson directly corresponds the chapters in my book Harmonic Analysis for Scale Selection and Chord Substitution by Curt Sheller (me).
Key Signatures and the Circle of Fifths and Fourths • Updated: Nov 18, 2019
There is a load of information in traditional Key Signatures. Unlocking the principles in this circle leads to a better understanding of music and how things work.
A key signature is a series of sharp or flat symbols placed on the staff, designating the notes that are to be consistently played higher or lower than the equivalent natural notes. Key signatures are generally written immediately after the clef at the beginning of a line of musical notation. Each major and minor key has an associated key signature that sharpens or flattens the notes which are used in its scale.
Harmonic Analysis - Chord Substitution Principles • Updated: Mar 23, 2012
A Substitution is when a chord replaces or is used in addition to an existing chord. Chords can have an active or passive quality to them. Active chords tend to be restless and want to move on to other chords. Passive chords tend to offer a feeling of rest and resolution. This cycle of active and passive chords are what gives chord progressions their feeling of movement.
Harmonic Analysis - Worksheet and Examples • Updated: Apr 6, 2012
Harmonic Analysis is the understanding of the functional sequence of chords. It is the process used to analyze the harmonic structure of a progression, song or composition. This analysis is then used to make scale selections for improvisation and chord substitution. This lesson contains a blank worksheet and several completed examples using standards from the jazz repertoire.
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Related Books for Harmonic Analysis - Scale Selection at this time.
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