Tasty Lines Over a Neo-Soul Vamp
Coming to the forefront of popular culture in the mid-1990's, it was overwhelmingly a vocalist's music, represented by a younger, "urban" group of artists and their audience.
At the same time and with some of the same roots, its instrumental cousin - labeled "Smooth Jazz", for lack of a better term - was being dressed up, watered down and marketed to an older demographic, with its own radio format, etc.
What could be argued as being a rough cross-pollination of these two genres has, over time, yielded something definable as "instrumental Neo-Soul", or "Neo-Soul Jazz", with its own unique harmonic vibe.
In my attempt at understanding what makes this Neo-Soul harmonic vibe what it is, I've created several audio and notational examples (below). As a saxophonist with less than elite two-handed keyboard skills (no Robert Glasper here), the process has been slow-motion, but I think these examples are representative of the style in a basic sort of way.
Example #1 below illustrates the chords and voicings of a 4-bar vamp - over a programmed drum loop and simple bass line at 150 bpm.
Notice that each of the five chord structures is a complete minor 13th chord, containing all seven notes, with none repeated. If viewed horizontally as a scale, they would contain all seven notes of a Dorian mode - the 2nd mode of a Major scale and therefore of the Major scale itself (a whole step below the chord's letter name) as in the first measure (Bb min13 = Bb Dorian = Ab Major scale).
Part of Neo-Soul harmony's secret sauce is the use of polychords (chord over chord ), whereby a chord voicing in the right hand sits on top of one in the left. In the case of the Bb-13 in the first measure below, a C-7 (third inversion) is voiced in the right hand on top of a root position Db Maj triad in the left, and could be written as C-7/Db Maj. The fact that the bass (not shown) is sounding a Bb, is why it´s called a Bb-13 and not a Db Maj7#11. This use of polychords, together with their often non-diatonic movement (non key-based) is what gives Neo-Soul harmony its extra-dimensional sonic perception.
Check out the D-13 in measure #2. The right hand moves from a C min7 to a C Maj7, by moving two notes up by half-steps (Bb to B and Eb to E) while C an G remain as common tones, maintaining the same chordal inversion and shape. This parallel Maj - min (and vice versa) movement is a common sound which recalls elements of early Blues. Two notes in the left hand also moves up by half-steps (Db to D and Ab to A) with F staying put, forming an D min triad (C Maj7/D min = D-13).
Notice the top note of each voicing - the common tone is G, in this case. Another potent feature of Neo-Soul harmony is chordal movement underneath a common top tone, which can get considerably more complex than in this particular example.
Ex #1 - A 4-bar Neo-Soul loop at 150 bpm, using complete minor 13th chords.
Measure #4 is where things really get interesting. For the first two beats, in the right hand, the top tone stays on F, while the D from the previous chord moves down a whole step to C, the B to Bb and the A to Gb, resulting in a 4-2-5 Super 4 voicing - call it Eb-6 9, while the left hand sounds a fourth chord (aka 027 trichord), call it Ab sus4, resulting (again with Eb in the bass) in Eb-6 9/Ab sus4 = Eb-13.
On the "and" of beat 3, the top note of the right hand slides up a half step from F to Gb. This creates smooth voice-leading back to top-tone G in measure #1. C moves up to Eb, Bb to B and Gb to A#(Bb). This creates, enharmonically, a third inversion B Maj7 chord, with the aforementioned smooth voice leading back to measure #1, via two common tones (Bb/A# and Eb). The remaining two voices slide up a half step (B to C and Gb to G).
In the left hand, Eb nudges up to E while Ab & Db remain common, resulting in an open voiced Db min triad. The overall result becomes B Maj7/Db min = Db-13.
This open left hand voicing closes back up for the return back to measure #1, with the Db dropping down an octave, the E sliding up to F and the Ab remaining common.
1) The notes C, Eb, F, G & Bb are common to pretty much each of the 5 chord structures, enough so to make this choice of notes (commonly known as C Minor Pentatonic) a natural basis for melodic improvisation - with C as the key center. This is how a singer or instrumentalist might instinctively approach it, and is stylistically consistent with numerous musical genres. The fact that the bass line in this first example sounds in Bb, actually creates a hip polytonal effect against this pentatonic.
2) The second approach utilizes the full range of melodic material from each of the given minor 13th chords - including scale fragments, triads, 7th & 9th chords, etc. from the various polytonal sources. This approach requires the improviser to be familiar with this material and to be able to make seamless melodic connections between chords / modes. This is the way of the Neo-Soul Jazz Samurai!
Examples #2 thru #4 below illustrate this second approach. Notice how in almost each case, melodic voice leading between chords is by either a whole or half step.
Each example has its own unique bass line, in counterpoint to the melodic line.
Ex #2
B. Stern
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