Chord Distribution Analysis

Chord SymbolCountFrequency
Cm7925.7%
Bbmaj7411.4%
F7411.4%
G738.6%
G9#538.6%
Ab725.7%
Bb725.7%
Gb0712.9%

Key Patterns Detected

PatternFunctionFrequency
Cm7 -> F7Setup (Major Key)4
G7 -> Cm7Resolution (Minor)3
Gm7 -> C7Setup (Major Key)1
F7 -> Bbmaj7Resolution (Major)1
Fm7 -> Bb7Setup (Major Key)1
Bb7 -> Ebmaj7Resolution (Major)1

Harmonic Highlights

  • The progression emphasizes the transition from Bbmaj7 to the relative minor (Cm7) via G7, highlighting a persistent vi-V-i relationship within the C minor context.
  • Chromaticism is utilized through the Ab7 to G7 movement, acting as a subV/V or bVII7 leading into the dominant of the C minor key center.
  • The sequence F7 - Gbยฐ7 - Gm7 employs a passing diminished chord to bridge the IV7 and iii chords, creating smooth ascending voice leading.
  • Repetitive G9#5 to Cm7 cadences reinforce the minor tonality using altered dominant tensions typical of the bebop idiom.

Improvisation Focus

  • Navigating secondary dominants using the C Harmonic Minor scale and Mixolydian b9 b13 modes.

Difficulty Rating

  • 2/5: The piece consists primarily of standard ii-V-I movements and predictable secondary dominants, making it accessible for developing improvisers.

๐Ÿ“š Standard Available in:

The Real Book - Volume III
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