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Sunday, July 28, 2024

468. HOW TO SYMBOLIZE CHORD TRASITIONAL CHROMATIC ARPEGGIOS (OSTINATOS) SO AS TO MODULATE THEM IN NEXT CHORD TRANSITIONS

 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.


Thursday, July 25, 2024

467. WHAT IS THE SYSTEMATIC RE-HARMONIZATION OF A SONG BY GYPSY JAZZ? IT IS THE RELATIVIZED HARMONIC REFINMENT.

WHAT IS THE SYSTEMATIC RE-HARMONIZATION OF A SONG BY GYPSY JAZZ? 

IT IS THE RELATIVEZED 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 t he 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) , (6m, 6M7). 


(See also post 466) 

Thursday, July 11, 2024

465. THE MAJOR-MINOR INDIFFERENCE RULE IN (12 BARS) BLUES IMPROVISATION

 According to this rule, the melodic improviser so as to improvise may assume either a major or a minor or both  scale over the 3 chords of the blues.


https://www.youtube.com/watch?v=C8EAAVxvB4A&ab_channel=JamesHargreavesGuitar

464. THE CHORDS SCALE INDEPENDENCE RULE IN (12 BARS) BLUES IMPROVISATION.

     According to this rule, at each change of a (major) chord in the blues, the melodic improviser assumes a change of the scale too with root note the root of the (major) chord! Thus he makes 3 transpositions


Actually this rule may go far beyond  the 12 bars blues, to any chord progression!


https://www.youtube.com/watch?v=C8EAAVxvB4A&ab_channel=JamesHargreavesGuitar



Monday, July 8, 2024

463. THE PASSEPARTOUT OF IMPROVISATION AND COMPOSITION . RHYTHMIC PATTERNS HARMONIC TRANSITIONS AND MELODIC SHAPES INVARIANTS.

 Since the most detailed ontology is at the melody, then the 3 invariants (rhythmic, harmonic, motion shape) occur as invariants of the melody too. 


For years I have been looking for the most comprehensive and convenient concept for improvisation and composition from the simplest to the most complex ie starting from rhythm then harmony then melody. I had found it parts but not in total. Listening to a young street musician explaining how she improvises a steel percussion instrument called hand pan that plays also melodies, she flashed my intuition. ....the most comprehensive concept is something very well known in mathematics and geometry ......

https://www.youtube.com/watch?v=PEuwaKR0cbY&t=50s&ab_channel=AmyNaylor-HandpanConnect

It is Felix Klein's Erlangen program idea that every 
geometric structure is defined by the group of 
transformations that leaves it invariant.
Here that every musical structure is defined and created 
by the rhythmic harmonics and melodic invariants of their 
variations......
This girl said about  the repetition of the invariants in 
improvisation: "repetition is your friend".
I called the description of this in the context of music the 
PASSEPARTOUT of musical improvisation and 
composition.
You keep one of the 3, rhythmic pattern harmony 
(chords transitions)  melodic shape fixed and change 
the other two and thus you create the music, 
 provided the emotion approves it.
 
You keep the rhythmic pattern constant and change 
the melodic shape or the harmony (chords transitions) 
 
You keep the harmony (chords transitions)  constant and 
change the rhythmic pattern or the melodic shape
 
Keep the melodic shape constant and change the rhythmic 
pattern  or harmony (chords transitions).
 
 
 

 

Thursday, June 20, 2024

462. VECTORS, WAVES AND SPIKES IN DIATONIC CHROMATIC OSTINATOS

 VECTORS, WAVES AND SPIKES

The identification and method of composition of them is based on the next concepts

1) As melody it has 3 layers (Simplicial submelody of the harmony, melodic arpeggio , diatonic chromatic arpeggio or ostinado)
2) Within each chord, it has 
2.0) A single note from the simplicial submelody
2.1) A projected and simplified melodic arpeggio
2.2) The full diatonic chromatic ostinado, which consists from
a) Diatonic chromatic maxima VECTORS
b) Diatonic chromatic RIPPLES or waves or cycles or oscillations
c) SPIKES (jumps with intervals higher than 2nd)