Chord Distribution Analysis

Chord SymbolCountFrequency
Gmaj7/D722.6%
D7sus722.6%
F726.5%
Bbmaj726.5%
Abmaj726.5%
D713.2%
Dm713.2%
G713.2%

Key Patterns Detected

PatternFunctionFrequency
Gmaj7/D -> D7susSetup (Major Key)5
D7sus -> Gmaj7/DResolution (Major)2
Dm7 -> G7Setup (Major Key)1
G7 -> Cmaj7Resolution (Major)1
Cmaj7 -> F7Setup (Major Key)1
Cm7 -> F7Setup (Major Key)1
F7 -> Bbmaj7Resolution (Major)1
Bbm7 -> Eb7Setup (Major Key)1
Eb7 -> Abmaj7Resolution (Major)1
Am7 -> D7susSetup (Major Key)1
D7sus -> Gmaj7Resolution (Major)1

Harmonic Highlights

  • The composition utilizes a D pedal point throughout the A sections, creating a suspended, modal tension between Gmaj7 and D7sus.
  • It features a sudden modulation to the bIII (Bb major) via a Bbm7-Eb7 ii-V sequence, requiring a shift in tonal gravity.
  • The bridge utilizes functional ii-V-I movements into the IV chord (Cmaj7), contrasting the static nature of the pedal-heavy A sections.

Improvisation Focus Mastering ii-V-I patterns across distantly related tonal centers (G major and Bb major) while navigating the transition from Latin to Swing feels.

Difficulty Rating 3/5: While the tempo is often brisk, the primary challenge is smoothly connecting the static modal sections with the rapid non-diatonic modulations.


๐Ÿ“š Standard Available in:

The Real Book - Volume I
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