A composer voicing a G13 chord (G–B–D–F–A–C–E) wants to keep it clear and idiomatic. Which note is typically omitted first?
AThe third (B) — it creates too much dissonance with the extensions
BThe seventh (F) — the extensions already imply tension
CThe fifth (D) — it is acoustically redundant and doesn't define quality or function
DThe root (G) — the bass instrument will supply it
Jazz voicing practice keeps the third (which establishes chord quality: major vs. minor) and the seventh (which establishes function and dissonance), while omitting the fifth, which is acoustically redundant — the overtone series already implies it. The fifth can be included for specific effects but is the default omission when pruning a dense extended chord. Omitting the third (option A) destroys quality information; omitting the seventh (option B) weakens the functional tension that extended harmony is built on.
Question 2 Multiple Choice
In a film score, a Cmaj7 chord sits under a slow, reflective visual image for eight bars without resolving. This is an example of which use of extended harmony?
AFunctional use — the Cmaj7 is moving toward an implied V chord
BColoristic use — the chord creates harmonic atmosphere through sustained, unresolved tension
CChromatic use — the chord is functioning as a passing harmony between two tonal centers
DStructural use — the chord defines the tonal center by its duration
Extended chords serve two broad compositional functions. In their functional role, they behave like their root chord and resolve normally. In their coloristic role, they sit statically, their unresolved tensions creating harmonic atmosphere rather than directed motion. A static major seventh chord hovering under a reflective image is a quintessential coloristic use — the goal is the harmonic color and emotional resonance of the sustained tension, not propulsion toward a cadence.
Question 3 True / False
The raised eleventh (♯11) is preferred over the natural eleventh in dominant chords because the raised eleventh avoids a dissonant semitone clash with the major third.
TTrue
FFalse
Answer: True
In a dominant chord, the natural 11th falls a half step above the major third — creating a brutal minor-second clash that muddies the chord quality. The raised eleventh (♯11) is a tritone above the root instead, which actually produces a more resonant, defined dissonance in the context of the dominant function. This is the basis of the Lydian dominant scale (major scale with ♯4), which is ubiquitous in jazz precisely because the ♯11 integrates cleanly into the extended dominant sound.
Question 4 True / False
Adding a ninth to a ii chord (making it ii9) changes its harmonic function — it no longer moves naturally toward V.
TTrue
FFalse
Answer: False
In its functional role, an extended chord behaves like its root chord. A ii9 still functions as a pre-dominant chord moving toward V, just as ii7 does. The ninth adds sweetness and color to the sound without redirecting the harmonic trajectory. Extended harmony expands the emotional palette without necessarily disrupting the underlying functional logic. Only when extended chords are used coloristically — hovering statically — is their function suspended.
Question 5 Short Answer
What is the difference between the 'functional' and 'coloristic' uses of extended harmony, and how does a composer determine which role an extended chord is playing?
Think about your answer, then reveal below.
Model answer: In the functional role, an extended chord behaves like its root chord and participates in directed harmonic motion — a V13 still resolves to I, a ii9 still moves to V. The extensions add richness and color to a chord that is 'going somewhere.' In the coloristic role, an extended chord sits statically, using its unresolved tensions to create harmonic atmosphere rather than movement — think of the static Cmaj7 in a jazz ballad or an impressionist hover. The determining factor is whether the chord resolves its extensions in the expected voice-leading manner (functional) or allows them to float indefinitely (coloristic).
The distinction matters compositionally because it determines how listeners experience harmonic time. Functional extended chords use extensions to intensify the arrival of the cadence — the V13 before a triumphant I sounds grander than a plain V7. Coloristic extended chords suspend harmonic time, using the unresolved color to hold emotional space. Film composers exploit both constantly: coloristic for reflection and ambiguity, functional for narrative momentum and catharsis.