Chord Distribution Analysis

Chord SymbolCountFrequency
C7513.5%
F7513.5%
G7410.8%
Cm738.1%
Bbmaj725.4%
C#0725.4%
Dm725.4%
G7#925.4%

Key Patterns Detected

PatternFunctionFrequency
Dm7 -> G7#9Setup (Major Key)2
Am7 -> D7Setup (Major Key)1
Gm7 -> C7Setup (Major Key)1
Cm7 -> F7Setup (Major Key)1
F7 -> Bbmaj7Resolution (Major)1

Harmonic Highlights

  • Employs a chromatic ascending passage (Bbmaj7–Cm7–C#o7–Dm7) using a #iio7 diminished chord as a functional bridge between the ii and iii.
  • Features secondary dominant chains (G7#9–C7–F7) that create a strong circular motion toward the tonic, characteristic of rhythm changes.
  • Incorporates a temporary modulation to the IV chord (Eb) via a secondary dominant (Bb7), followed by an Eo7 passing diminished chord back to the Bb/F.
  • Utilizes a ii-V of VI (Am7–D7 to G7), momentarily shifting the tonal center to the relative minor’s dominant.

Improvisation Focus Bb Major Bebop scale combined with chord tone arpeggiation for passing diminished sections.

Difficulty Rating 3 (Intermediate): Navigating the rapid succession of secondary dominants and passing diminished chords requires fluid voice leading and firm knowledge of bebop vocabulary.


📚 Standard Available in:

The Real Book - Volume III
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