Chord Distribution Analysis

Chord SymbolCountFrequency
C71020.8%
F7612.5%
Am7b548.3%
D7#548.3%
G948.3%
Bb648.3%
F36.2%
Gm736.2%

Key Patterns Detected

PatternFunctionFrequency
Am7b5 -> D7#5Setup (Minor Key)4
Gm7 -> C7Setup (Major Key)3
Cm7 -> F7Setup (Major Key)2
Bbm7 -> Eb7Setup (Major Key)2
F7 -> Cm7Resolution (Minor)1
F7 -> Bbmaj7Resolution (Major)1
Eb7 -> Bbm7Resolution (Minor)1
Eb7 -> Abmaj7Resolution (Major)1

Harmonic Highlights

  • The opening minor ii-V (Am7b5 - D7#5) deceptively resolves to G9, acting as an extended secondary dominant (V/II) rather than a stable G minor tonic.
  • The progression utilizes a “chain of dominants” (G9 - C7 - F7) to create strong directional momentum toward the Bb major tonic.
  • Rapid toggling between the ii-V of Bb (Cm7 - F7) and the ii-V of F (Gm7 - C7) demonstrates classic secondary dominant modulation within the diatonic framework.

Improvisation Focus Voice leading through the “Circle of Fourths” using chord tone targeting on 3rds and 7ths.

Difficulty Rating 2: The harmonic language consists of standard, predictable jazz building blocks, making it accessible for intermediate players to navigate at moderate tempos.


📚 Standard Available in:

The Real Book - Volume III
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