We cannot stress much the importance of triads of chords (but also of notes intervals and scales) in improvisation.
A good application is to realize that as a diatonic scale is characterized as chords on the wheel by 4ths by its 3 chords on the steps 1M, 4M , 5M (harmonic triplet of chords) , OR 7d 1M 2m (chromatic tripler of chords) the same can apply for the modes of the diatonic scale.
The chords of a mode of a diatonic scale at the steps 1,4,5 (or 7,1, 2) of it characterize its mood.
For example for the mixolydian mode of the diatonic scale from C ,(G, A, B , C, D, E, F, G) the chords at the steps 1,4 ,5 are the G, C, Dm) thus the 1, 2, 5 or I, ii, V of the original ionian and are the base of blues jazz.
Based on this perception, the 7 modes of the diatonic scale have the following chord triads:
(that is chords on their 1st 4th and 5th step, and we symbolize by m=minor M=major d=diminsihed.
Based on this perception, the 7 modes of the diatonic scale have the following chord triads:
(that is chords on their 1st 4th and 5th step, and we symbolize by m=minor M=major d=diminsihed.
1. IONIAN : HARMONIC TRIPLET (1M, 4M, 5M)
2. DORIAN : HARMONIC TRIPLET (2m, 5M, 6m)
3. PHRYGIAN : HARMONIC TRIPLET (3m, 6m, 7d)
4. LYDIAN: HARMONIC TRIPLET (4M, 7d,1M)
5. MIXOLYDIAN: HARMONIC TRIPLET (5M, 1M,2m)
6. AEOLIAN: HARMONIC TRIPLET (6m, 2m, 3m)
7. LOCRIAN: HARMONIC TRIPLET (7d, 3m, 4M)
Based on this perception, the 7 modes of the diatonic scale have the following chord triads:
(that is chords on their 1st 4th and 5th step, and we symbolize by m=minor M=major d=diminsihed.
Based on this perception, the 7 modes of the diatonic scale have the following chord triads:
(that is chords on their 1st 4th and 5th step, and we symbolize by m=minor M=major d=diminsihed.
1. IONIAN : HARMONIC TRIPLET (1M, 4M, 5M)
2. DORIAN : HARMONIC TRIPLET (2m, 5M, 6m)
3. PHRYGIAN : HARMONIC TRIPLET (3m, 6m, 7d)
4. LYDIAN: HARMONIC TRIPLET (4M, 7d,1M)
5. MIXOLYDIAN: HARMONIC TRIPLET (5M, 1M,2m)
6. AEOLIAN: HARMONIC TRIPLET (6m, 2m, 3m)
7. LOCRIAN: HARMONIC TRIPLET (7d, 3m, 4M)
We may clasify them according the the major and minor chords
A.ALL 3 MAJOR CHORDS (ALL HAPPY)
1. IONIAN : HARMONIC TRIPLET (1M, 4M, 5M)
B. 2 MAJORS AND ONE MINOR OR DIMINISHED CHORD (ALMOST HAPPY, ALMOST MAJOR)
4. LYDIAN: HARMONIC TRIPLET (4M, 7d,1M)
5. MIXOLYDIAN: HARMONIC TRIPLET (5M, 1M,2m)
C. 2 MINORS (OR DIMINISHED) AND ONE MAJOR (LITTLE SAD, ALMOST MINOR )
2. DORIAN : HARMONIC TRIPLET (2m, 5M, 6m)
7. LOCRIAN: HARMONIC TRIPLET (7d, 3m, 4M)
D. THREE MINORS OR DIMINISHED (ALL SAD) (ALL MINOR)
3. PHRYGIAN : HARMONIC TRIPLET (3m, 6m, 7d)
6. AEOLIAN: HARMONIC TRIPLET (6m, 2m, 3m)
We may compare the basic harmonic triplets with the basic chromatic triplets (see also post 322)
1. IONIAN : CHROMATIC TRIPLET (7d, 1M, 2m)
2. DORIAN : CHROMATIC TRIPLET (1M, 2m, 3m )
3. PHRYGIAN : CHROMATIC TRIPLET(2m,3m, 4M)
4. LYDIAN: CHROMATIC TRIPLET(3m, 4M, 5M)
5. MIXOLYDIAN: CHROMATIC TRIPLET (4M, 5M, 6m)
6. AEOLIAN: CHROMATIC TRIPLET (5M, 6m, 7d)
7. LOCRIAN: CHROMATIC TRIPLET (6m, 7d, 1M)
If we want an ordering of how much "minor" and "sad" or "anxious" is a mode and how much "major" and "happy" or "serene" is a mode based on the ordering d<m<M then we get the next partial ordering (non-linear ordering)
PHRYGIAN<AEOLIAN<DORIAN<MIXOLYDIAN<IONIAN
and
LOCRIAN<DORIAN
LYDIAN<MIXOLYDIAN
But the Locrian and Lydian are not comparable with all the others so as to put all of them in a linear order.
Here is a musicological old qualitative description of it, but the names are not the standard but an older version of them (e. mode V is referred in this table as Lydian , while nowadays is named Mixolydian). To realize about which mode is referenced we must look at the 2nd column with the latin numerals.
Based on this concept it is possible to define tunings of an harmonica (see post 274 ) with these types of triads of chords so as to improvise with the corresponding harmony on each of the 7 modes!
We may compare the basic harmonic triplets with the basic chromatic triplets (see also post 322)
1. IONIAN : CHROMATIC TRIPLET (7d, 1M, 2m)
2. DORIAN : CHROMATIC TRIPLET (1M, 2m, 3m )
3. PHRYGIAN : CHROMATIC TRIPLET(2m,3m, 4M)
4. LYDIAN: CHROMATIC TRIPLET(3m, 4M, 5M)
5. MIXOLYDIAN: CHROMATIC TRIPLET (4M, 5M, 6m)
6. AEOLIAN: CHROMATIC TRIPLET (5M, 6m, 7d)
7. LOCRIAN: CHROMATIC TRIPLET (6m, 7d, 1M)
If we want an ordering of how much "minor" and "sad" or "anxious" is a mode and how much "major" and "happy" or "serene" is a mode based on the ordering d<m<M then we get the next partial ordering (non-linear ordering)
PHRYGIAN<AEOLIAN<DORIAN<MIXOLYDIAN<IONIAN
and
LOCRIAN<DORIAN
LYDIAN<MIXOLYDIAN
But the Locrian and Lydian are not comparable with all the others so as to put all of them in a linear order.
Here is a musicological old qualitative description of it, but the names are not the standard but an older version of them (e. mode V is referred in this table as Lydian , while nowadays is named Mixolydian). To realize about which mode is referenced we must look at the 2nd column with the latin numerals.
Based on this concept it is possible to define tunings of an harmonica (see post 274 ) with these types of triads of chords so as to improvise with the corresponding harmony on each of the 7 modes!
