Chord Distribution Analysis

Chord SymbolCountFrequency
Am7613.3%
Gmaj7511.1%
D748.9%
Cm636.7%
Bm736.7%
Em736.7%
Bb0724.4%
F#m7b524.4%

Key Patterns Detected

PatternFunctionFrequency
Am7 -> D7Setup (Major Key)4
D7 -> Am7Resolution (Minor)2
F#m7b5 -> B7b9Setup (Minor Key)2
Em7 -> A7Setup (Major Key)2
B7b9 -> EmResolution (Minor)1
C#m7b5 -> F#7#5Setup (Minor Key)1
F#7#5 -> Bm7Resolution (Minor)1
A7 -> Dmaj7Resolution (Major)1
D7 -> Gmaj7Resolution (Major)1
Dm7 -> G7Setup (Major Key)1
G7 -> Cmaj7Resolution (Major)1
B7b9 -> Em7Resolution (Minor)1
Bm7 -> E7Setup (Major Key)1
E7 -> Am7b5Resolution (Minor)1
Am7b5 -> D7b9Setup (Minor Key)1
D7b9 -> Gmaj7Resolution (Major)1

Harmonic Highlights

  • Employs a chromatic passing diminished chord (Bb°7) to bridge the Imaj7 (Gmaj7) and ii7 (Am7), creating smooth ascending voice leading.
  • Utilizes the iv6 (Cm6) as a subdominant minor substitution, providing a classic “Gershwin” modal mixture and a strong pull back to the tonic.
  • Features a modulation to the dominant key (D Major) via a secondary ii-V-I sequence (Em7-A7-Dmaj7).
  • Incorporates a functional minor turnaround (F#m7b5 - B7b9 - Em) to establish the relative minor (E minor) key center.

Improvisation Focus Guide tone soloing (3rds and 7ths) to navigate the frequent secondary dominants and shifting tonal centers.

Difficulty Rating 3/5. While the ballad tempo is forgiving, the frequent modulations and secondary dominants require an intermediate understanding of functional harmony and voice leading.


📚 Standard Available in:

The Real Book - Volume VI
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