Chord Distribution Analysis

Chord SymbolCountFrequency
Abmaj7410.3%
Gmaj7410.3%
Fm737.7%
Bbm737.7%
Eb737.7%
Dbmaj725.1%
Cmaj725.1%
Cm725.1%

Key Patterns Detected

PatternFunctionFrequency
Bbm7 -> Eb7Setup (Major Key)3
Eb7 -> Abmaj7Resolution (Major)3
Am7 -> D7Setup (Major Key)2
D7 -> Gmaj7Resolution (Major)2
Dm7 -> G7Setup (Major Key)1
G7 -> Cmaj7Resolution (Major)1
Fm7 -> Bb7Setup (Major Key)1
Bb7 -> Ebmaj7Resolution (Major)1
F#m7b5 -> B7b9Setup (Minor Key)1
B7b9 -> Emaj7Resolution (Major)1
C7b13 -> Fm7Resolution (Minor)1
Gm7b5 -> C7b9Setup (Minor Key)1

Harmonic Highlights

  • Employs consistent vi-ii-V-I-IV cycles, modulating rapidly between Ab major, C major, G major, and E major tonal centers.
  • Utilizes pivot chord modulations where the IV chord of one key (e.g., Dbmaj7) serves as a transition point to the ii-V of the next (Dm7-G7).
  • Features a bridge with a sequential modulation moving a major third down from G major to E major, showcasing chromatic mediant relationships.
  • Employs a ii-V-I turnaround in C minor/Ab major to resolve the complex cycle of fourths back to the head.

Improvisation Focus

Voice leading via 3rds and 7ths (guide tones) to navigate the rapid, frequent modulations across five different keys.

Difficulty Rating

4/5. The constant shifting of key centers requires advanced harmonic awareness and the ability to transpose melodic ideas fluently in real-time.


๐Ÿ“š Standard Available in:

The Real Book - Volume I
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