Chord Distribution Analysis

Chord SymbolCountFrequency
F7646.2%
Bb7323.1%
Am717.7%
D717.7%
Gm717.7%
C717.7%

Key Patterns Detected

PatternFunctionFrequency
Am7 -> D7Setup (Major Key)1
D7 -> Gm7Resolution (Minor)1
Gm7 -> C7Setup (Major Key)1

Harmonic Highlights:

  • Utilizes a standard 12-bar blues framework in F, primarily employing dominant 7th chords (F7, Bb7) to establish a blues-based tonality.
  • Features a functional iii-VI-ii-V turnaround (Am7-D7-Gm7-C7) in measures 8 through 10, facilitating a smooth transition back to the tonic.
  • The progression maintains a consistent harmonic rhythm, characteristic of the hard bop era, allowing for dense melodic exploration over stable changes.

Improvisation Focus: The F Blues scale integrated with “sheets of sound” permutations and motivic displacement.

Difficulty Rating: 3/5. While the 12-bar structure is fundamental, the extreme tempo and required physical stamina for Coltrane-style phrasing demand significant technical proficiency.


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The Real Book - Volume II
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