Chord Distribution Analysis

Chord SymbolCountFrequency
F7917.0%
Cm7611.3%
C759.4%
Bbmaj747.5%
Bb635.7%
Db0735.7%
Cm635.7%
Dm7b535.7%

Key Patterns Detected

PatternFunctionFrequency
Cm6 -> F7Setup (Major Key)3
Dm7b5 -> G7b13Setup (Minor Key)3
G7b13 -> Cm7Resolution (Minor)3
Cm7 -> G7Setup (Major Key)3
F7 -> Bbmaj7Resolution (Major)3
Cm7 -> F7Setup (Major Key)3
Fm7 -> Bb7Setup (Major Key)2
Gm7 -> C7Setup (Major Key)2
Bb7 -> Fm7Resolution (Minor)1
Bb7 -> Ebmaj7Resolution (Major)1
C7 -> Gm7Resolution (Minor)1

Harmonic Highlights

  • Frequent use of the #iio7 passing chord (Db°7) provides chromatic voice leading between the tonic Bb6 and the supertonic Cm6.
  • Incorporation of secondary minor ii-V progressions (Dm7b5 – G7b13) to target the ii chord, adding temporary minor-key harmonic tension within a major framework.
  • Classic V/V (C7) to V7 (F7) movement reinforces functional cadences and strong dominant preparation typical of the Great American Songbook.

Improvisation Focus Guide Tone Navigation: Emphasizing 3rds and 7ths is essential for outlining the frequent secondary dominants and smoothly transitioning through diminished substitutions.

Difficulty Rating 2/5: The tune follows a logical “circle of fourths” structure with predictable harmonic rhythms, making it an ideal study for intermediate jazz foundation.


📚 Standard Available in:

The Real Book - Volume III
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