Here the basic principlses are
1) We add as few new roots for chords as possible (besides the 7 roots ofthe 7 notes of the diatonic scale)
2) Thus restricting to changing the types of the chord to an other type among the Major, minor, diminished, augmented
Examples of full chromatic tonality:
By utilizing two cycles of 7 chords as connected arcs in the wheel by 4ths. The first cycles is all the diatonic 7d-3m-6m-2m-5M-1M-4M
The seconds 7-cycle turns some minors to majors and the 5m to 5m
It is the cycle 7M-3M-6M-2M-5m-1M-4M
The melodies o play should be based on the middle 3rd notes of the chords.
An alternative pair of 8-cycles of chords is the next
4#m-7m-3M-6m-2m-5M-1M-4M
The seconds 8-cycle turns some minors to majors.
4#M-7M-3M-6M-2m-5M-1M-4M
The 4 types of chromatic tonality as in the post 379 are examples of the current post method too.
RANDOMIZING THE SEQUENCE OF THE HARMONIC CYCLE BY INTERPOLATING MELODIC AND SUPERCHROMATIC CHORD TRANSITIONS BY MAJOR CHORDS.
When we are as above ina harmonic 6 cycle or 7 cycle or 8 cycle , instead of runningthe cycle with its harmonic sequence order, we may randomize the sequencing by utlizing
a) Super-chromatic transitions, in other words transition that the roots of the chord diffe by a semitone onle (thus only 2 such transitions possible)
b) Melodic trasnitions, in other words transitions that the roots of the chords differ by a mior or major 3rd. In such melodic trasnitions the musical effect is more exciting when both chords are of major type.
An example of such a nice harmony is the song "song for two Pamelas" by David Grisman and Tony Rice.
https://www.youtube.com/watch?v=w9YdcbzcL6Y&ab_channel=TonyRice-Topic
Here the 7 cycle is 7M7-> 3M7-> 6m (6M7)-> 2m (2M7)-> 5M7-> 1M-> 4M
and th red pairs are melodic trasnitions while the blue pair superchromatic transitions
In other words we avoid the simple chromatic and not super chromatic, transitions.
6m 4M 3M7
6m 6M7 2m
5M7 1M 4M
4M7 3M7 6m
6M7 1M7 4M
4M7 2M7 5M7
5M7 3M7 6m
4M7 3M7 2m
4M7 6M
6m 2m 7M7
7M7 3M7 6m
6M7 2m
5M7 1M
