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Upper structure

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Upper structure

In jazz music, the term upper structure or upper structure triad refers to a voicing approach developed by jazz pianists and arrangers defined by the sounding of a major or minor triad in the uppermost pitches of a more complex harmony.[1]

Contents

  • Examples 1
  • Application 2
  • Shorthand notation 3
  • Recordings 4
  • See also 5
  • External links 6
  • Sources 7

Examples

Example 1: Below, a common voicing used by jazz pianists is given for the chord C79 (C major chord with a flat 7th, and extended with a sharpened 9th).

In the lower-stave the notes E and B are given. These form a tritone which defines the dominant sound, and are the major 3rd and flattened 7th of the C79 chord.

In the upper-stave the notes E, G, and B are given together: these form an E major triad.

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This E major triad is what would be called the upper structure. Considered in relation to the root C, the notes of this E major triad function, respectively, as the sharpened ninth (actually a flattened tenth, enharmonically equal to the sharpened ninth which forms the root of the E major chord), fifth, and seventh in relation to that root.

(Note: the root C is omitted here, and is often done so by jazz pianists for ease of playing, or because a bass player is present.)

Example 2: The following example illustrates the notes of an F minor triad functioning as part of a C13911 chord (C major chord with a flat 7th, flatted ninth, sharpened 11th, and 13th):

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In relation to the root of C, the C (enharmonic with D) functions as a flattened ninth, the F-sharp functions as a sharpened eleventh, and the A functions as the thirteenth.

Application

Determining which upper structure(s) can be juxtaposed on top of a chord is achieved by considering the relationship between a particular chord and the scale it implies. An example follows:

The chord C13911 contains the following notes, from the root upwards: C, E, G, B, D, F, A

The following octatonic scale contains all of these pitches, and fits or matches up with the C13911 chord: C, D, D, E, F, G, A, B, C

Choosing from the available pitches given by this octatonic scale, we can construct a number of major, and minor triads: E major [E-G-B], E minor [E-G-B], G major [G-B-D], F minor [F-A-C], A major [A-C-E], A minor [A-C-E]]

Juxtaposing any of these triads over the original C13911 chord will provide a potential upper structure that agrees with this chord type and the related scale.

Shorthand notation

Common jazz parlance refers to upper structures by way of the interval between the root of the bottom chord and the root of the triad juxtaposed above it.[2] For instance, in example one above (C79) the triad of E-flat major is a (compound) minor 3rd away from C (root of the bottom chord). Thus, this upper structure can be called upper structure flat three, or USIII for short.

Example two (C13911) is called upper structure sharp four minor, and can be written shorthand as USiv.

Other possible upper structures are:

USII - e.g. D major over C7, resulting in C1311

USV - e.g. G major over C7, resulting in C7911

USVI - e.g. A major over C7, resulting in C7913

USVI - e.g. A major over C7, resulting in C139

USi - e.g. C minor over C7, resulting in C79

USii - e.g. D minor over C7, resulting in C79 13

USiii - e.g. E minor over C7, resulting in C7911

Recordings

A quintessential example of a pianist using upper structures is Bill Evans's playing on 'Blue in Green', from Miles Davis's Kind of Blue.

See also

External links

  • UST Jazz Piano Chord Voicings Vol. 1 to 9 Demo Pages

Sources

  1. ^ Ellenberger, Kurt. Materials and Concepts in Jazz Improvisation, p.20.
  2. ^ "The Jazz Piano Book". Mark Levine. (1989). Petaluma, CA: Chapter Fourteen - Upper Structures pages 109-124
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