The basic harmonic triad of major chords in a diatonic scale is used in blues (12 bars blues or not)
A chromatic variation-pertrubation (similar to that in the previous post 471) is to shift by a simitone up the 5M and 4M, to 5#dim7 and 4#dim7 respectively .
The 4#dim7 resolves to 5M, while the 1he 5#dim7 resolves to 1M
Alternative resuotuion to 1M is also the 5aug to 1M or 5M7->5aug->1M.
4M7 6m 2m BECOMES SOMETIMES
7M7 3M7 6m
4M 3M7 6m 2m
3M7 6m, 7bM, 2m
4M 3M7 6m 2m, 2#M
3M7 6dim7 2m
3M7 6m 2dim7
The latter variations are more often in a specific kind of folk songs Rebetika called Chasiklidika.
See also post 74.
CHROMATIC=BY LAND OR STANDING
MELODIC= BY SEA OR MOVING
HARMONIC=BY AIR OR FLYING
If 1,1#, 2, 2# ,......7, 1 is the full 12-notes chromatic scale based on a 7-notes diatonic scale, and
a1, a3 , a5 , a7 is the first chord C1 while
b1, b3, b5, b7 is the 2nd chord C2
The transitional chromatic arpeggio is a choice of notes some from the first line and some of the 2nd line of the
C1: A1, a2,A3 , a4, A5 ,a6, A7
C2: B1, b2, B3, b4, B5, b6, B7
capitals are inside the chords small outside the chords.
Such a pattern applies by substituting different chords transitions C1->C2.
WHAT IS THE SYSTEMATIC RE-HARMONIZATION OF A SONG BY GYPSY JAZZ?
IT IS THE RELATIVIZED HARMONIC REFINMENT.
RELATIVIZED HARMONIC REFINMENT=
1) We substitute a major chord X, with an harmonic pair (Y1,Y2) (harmonic pair means that Y1, Y2 have a distance at the roots an interval of 4th, that is Y1 resolves to Y2, so that usually Y1 is a chord with a 7nth)
2) and so that either Y1 or Y2 is relative to X (melodic relation which means the roots or middle note have a distance an interval of 3rd ) including the case Yi=X, and including 2nd relative (same root but the one major the other minor chord) ,
3) And the other chord to the relative can be major or minor.
An example is converting the chord progression
4M 1M 5M7 1M as a cycle , to the gypsy jazz re-harmonized chord progression as a cycle
(2m, 5M7), (1M, 4maj7), (7dim7, 3M7) , (3m, 6M7).
(See also post 466)
Example the reel Beatrix by Sharon Shannon.
