Chord Distribution Analysis

Chord SymbolCountFrequency
Am7313.0%
Gm728.7%
F628.7%
Fmaj714.3%
Fm714.3%
Bb714.3%
F#m714.3%
B714.3%

Key Patterns Detected

PatternFunctionFrequency
Fm7 -> Bb7Setup (Major Key)1
F#m7 -> B7Setup (Major Key)1
Bbm7 -> Eb7Setup (Major Key)1
Abm7 -> Db7Setup (Major Key)1
Gm7 -> C7Setup (Major Key)1
C#m7 -> F#7Setup (Major Key)1
Ab7 -> Dbmaj7Resolution (Major)1
Dbmaj7 -> Gb7Setup (Major Key)1

Harmonic Highlights:

  • Utilizes rapid chromatic ii-V sequences (such as F#m7-B7 leading to Bbmaj7) that subvert traditional diatonic expectations within a blues framework.
  • Frequent use of “side-slipping” and tritone substitutions (Abm7-Db7) to create harmonic tension before resolving to temporary tonic centers.
  • Replaces static blues sections with dense harmonic rhythm, often moving through parallel minor seventh chords in descending half-steps.
  1. Improvisation Focus: Guide-tone voice leading across rapid, descending ii-V chains.

  2. Difficulty Rating: 4/5. The dense harmonic turnover and constant modulations require advanced mental processing and high-level bebop vocabulary to navigate at typical performance tempos.


๐Ÿ“š Standard Available in:

The Real Book - Volume II
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