Tag Archives: melodic minor harmony

comping practice on AfuriKo’s “Sorsornet” harmonization

Sorsornet is a rhythm from the Boke region in Guinea. The chord progression came from harmonizing Mamady Keïta‘s version (on his album Nankama) of one of the traditional songs that go with the rhythm (AfuriKo‘s arrangement will be featured on the duo’s upcoming album).

The chords I used for comping in this video are mostly 5-note 2-hand jazz voicings. I’ve notated some of them for your consideration below:

Sorsornet comping practice

And here’s a short explanation of how each one of the 12 notated voicings relates to its corresponding chord symbol:

  1. C#mi7: inversion of generic “So What”/quartal voicing for minor chords;
  2. F#13: generic voicing for dominant chords (right hand plays a 3-note quartal voicing from the 5th down while left hand plays guide tones);
  3. D#mi7: generic “So What” voicing for minor chords with 5th as top note;
  4. E6: inversion of generic quartal voicing for major chords down from the root “E”; can also be considered a generic quartal voicing down from the 5th “B” with the root instead of the 7th in the bottom;
  5. F#9sus: inversion of “So What”/quartal voicing for sus chords;
  6. F#/G#: ditto;
  7. G/A: ditto;
  8. F#2/A#: upper structure triad (UST II) from C# melodic minor; the parent chord scale to this F#2/A# chord is A# locrian #2 (VIth mode of C# melodic minor);
  9. Ama7/B: inversion of “So What”/quartal voicing for sus chords;
  10. Ama7(#11): “So What” voicing with #11th as top note;
  11. F#mi9: generic “So What” voicing for minor chords with 5th as top note;
  12. C#: upper structure triad (UST II) from F# melodic minor; the parent chord scale to this C# triad is C# mixolydian b6 (Vth mode of F# melodic minor).

NB: the very cool djembe part (with additional foot shakers/rattles) in the video was performed by courtesy of wonderfully grooving percussionist Akiko Horii!


Visit http://funnelljazz.eu/lessons/ for detailed information about lessons or click on the image below to book your lesson today:
guaranteed-green

pentatonic possibilities 1: major and minor pentatonics

Pentatonics are 5-note scales. Technically, any ordered sequence of 5 notes can be called a pentatonic. But the most common and widely used pentatonic is without doubt the one obtained by reordering a series of 5 notes stacked on top of each other in fifths (for example, the series “C G D A E” gives us “C D E G A” once reordered). This particular pentatonic comes in its “major” form (C D E G A), and its relative “minor” form (A C D E G).

So, what do I mean by “pentatonic possibilities?” Well, pentatonics tend to break up the diatonic quality of 7-note major and minor scales because of their intervallic content. So, to create fresh melodic shapes and give a more edgy feel to your lines while improvising over changes, you might ask yourself: what pentatonic scales can I use over these chords? Chords derive from modes, and modes from harmony types, so the question may be rephrased as: what pentatonic scales can be extracted from the various harmony types?

For the purpose of this particular post, I will limit myself to what I call the “common” pentatonic scale (the one discussed in the first paragraph). Let’s have a look at major harmony first. The pentatonics listed in the first and last column of the table shown below are extracted from the key of C major (C D E F G A B). Their “major” forms are listed in the left-hand side of the table along with their relative “minor” forms on the right-hand side, and the roman numerals represent the scale degrees for each pentatonic:

major harmony pentatonic possibilities
C D E G A I Maj. pent. <=> VI min. pent. A C D E G
F G A C D IV Maj. pent. <=> II min. pent. D F G A C
G A B D E V Maj. pent. <=> III min. pent. E G A B D

Natural minor harmony is equivalent to the Aeolian mode. Therefore, the pentatonic possibilities in natural minor are the same as in major harmony (the roman numerals indicating the scale degrees, however, would have to change due to the shift to relative minor).

Now, let’s have a look at melodic minor harmony. It turns out only one pentatonic scale can be extracted from this harmony type. It is shown in the table below in the key of C melodic minor (C D Eb F G A B):

melodic minor harmony pentatonic possibilities
F G A C D IV Maj. pent. <=> II min. pent. D F G A C

Finally, neither harmonic minor nor harmonic major harmony bear common pentatonic possibilities, due to a flatted 6th scale degree in both instances. However, some interesting “exotic” pentatonics can be derived from those harmony types…


Visit http://funnelljazz.eu/lessons/ for detailed information about lessons or click on the image below to book your lesson today:
guaranteed-green