GB 7♭9 - UKULELE

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Chord composition

I III V ♭VII ♭IX
Root Major third Perfect fifth Minor seventh Minor ninth
F# A# C# E G

ALL ABOUT THE GB 7♭9 CHORD

Chord Composition

The Gb 7♭9 chord is composed of 5 notes :

  • F# (Root)
  • A# (Major third)
  • C# (Perfect fifth)
  • E (Minor seventh)
  • G (Minor ninth)

These notes form a seventh chord with minor ninth, creating dark tension.

How to play Gb 7♭9 on ukulele

The 7b9 chord Gb 7♭9 is a 7 chord (1-3-5-7b) with a minor ninth (b9) instead of major ninth.

  • Dark tension: the b9 creates strong and dramatic dissonance
  • Jazz and blues: signature color of bebop and modern jazz
  • Powerful resolution: the b9 creates strong pull toward tonic
  • Hendrix chord: popularized in psychedelic rock (E7#9 often mistakenly called 7b9)

The minor ninth (a semitone above the root) creates a very tense cluster, perfect for dramatic resolutions in jazz.

Bebop color

The 7b9 chord defines bebop:

  • Voicings without fifth: 1-3-7-b9 emphasizes tension
  • Half-whole scale: the chord comes from this symmetrical scale
  • V7b9-I resolution: more tense than simple V7-I

Common uses of Gb 7♭9

The 7b9 chord creates intense resolutions:

  • Bebop: characteristic altered dominant
  • Modern jazz: maximum tension before resolution
  • Jazz blues: sophisticated turnarounds
  • Flamenco: Spanish harmonic color

Styles

Bebop: defines modern jazz sound.

Flamenco: characteristic harmonic tension.

Jazz blues: sophisticated cadences.

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