Presentation of the Four Strong Modes
(see the Use Of Color)
Let’s start with a simple definition
A strong mode is one which possesses a strong, DOMINANT-TONIC cadence.
Before we continue, let's recap the names of the chord components -
a chord is built with what we call a FRAME (the root and the fifth)
composed of the Primary Notes,
the COMMON TONE, common to both chords of the progression, and
the PROPER TONE, specific to each chord of the progression.
The Secondary Notes consist of
the MEDIAN (the third), placed inside the FRAME and
the MOTRIX (the seventh or the sixth), placed outside the FRAME.
See Harmony - Basic Materials - Individual Chords
Now let's continue with another simple definition:
A strong "DOMINANT-type" chord is one which has
the interval of a diminished fifth (or augmented fourth)
between the two Secondary Notes,
the MEDIAN and the MOTRIX.
These chords are represented by the chord symbols "7" and "m6"
(Ex: G7and Dm6).
All other types of chords (Ex: Dm7, F6, C+7, Am-6) are weak
because they have a perfect fifth (or fourth) between the Secondary Notes.
Any weak chord may be strengthened
(Dominantized, use BACK button to return)
by the appropriate chromaticism applied to the MEDIAN or to the MOTRIX.
Table of the Four Strong Modes
Click on the chord symbols to hear the progression
Those on a Guided tour should click on in the Navigation Bar below.
Generation of the Four Strong Modes
1. The Diatonic Major Mode
2. The Diatonic Minor Mode
3. The Chromatic Major Mode
4. The Chromatic Minor Mode
5. Adjacent Chromatic Modes
6. A melodic Example