Chord Distribution Analysis

Chord SymbolCountFrequency
Bb71025.0%
Eb7615.0%
Db737.5%
Gb737.5%
F737.5%
Ab725.0%
B725.0%
G725.0%

Key Patterns Detected

PatternFunctionFrequency
G7 -> Cm7Resolution (Minor)2
Cm7 -> F7Setup (Major Key)2
Cm7b5 -> F7Setup (Minor Key)1
Dm7 -> G7Setup (Major Key)1

Harmonic Highlights

  • Utilizes a chromatic “side-slipping” sequence (Db7 to Gb7) that functions as a series of non-functional dominant substitutions or tritone extensions within the standard blues frame.
  • Incorporates the “backdoor” dominant (Ab7) transitioning from the IV chord (Eb7) back to the tonic, a hallmark of Benny Golson’s hard bop arrangements.
  • Features a sophisticated turnaround utilizing Gm7b5 and altered dominant chords (A7 to Bb7) to create a descending chromatic tension that resolves to the Bb tonic.

Improvisation Focus Bb Blues scale combined with Mixolydian guide-tone targeting to navigate the rapid chromatic dominant shifts.

Difficulty Rating 2/5 — While the chromatic substitutions add complexity, the underlying 12-bar blues structure remains a highly predictable and accessible framework for soloing.


📚 Standard Available in:

The Real Book - Volume II
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