Chord Distribution Analysis

Chord SymbolCountFrequency
Gmaj7618.2%
Gm739.1%
Am739.1%
D739.1%
Bbmaj739.1%
G626.1%
Gm626.1%
Cm726.1%

Key Patterns Detected

PatternFunctionFrequency
Am7 -> D7Setup (Major Key)3
D7 -> Gmaj7Resolution (Major)2
Cm7 -> F7Setup (Major Key)2
F7 -> Bbmaj7Resolution (Major)2
Am7b5 -> D7b9Setup (Minor Key)1
Bm7b5 -> E7b9Setup (Minor Key)1
E7b9 -> Am7Resolution (Minor)1
F#m7 -> B7Setup (Major Key)1
B7 -> Emaj7Resolution (Major)1

Harmonic Highlights

  • The head employs immediate modal interchange, shifting the tonic center from G major to G minor (parallel minor) within the first eight bars.
  • A secondary ii-V sequence (Bm7b5โ€“E7b9) targets the supertonic (Am7), creating a sophisticated “ii-of-ii” motion that delays the resolution to the tonic.
  • The bridge features a modulation to Bb major (bIII) via a Cm7โ€“F7 sequence, briefly establishing a new tonal center before returning to G major through a chromatic turnaround.

Improvisation Focus Modal interchange (navigating the contrast between G Ionian and G Dorian/Aeolian).

Difficulty Rating 3/5. The frequent shifts between parallel major and minor tonalities, coupled with a typically fast performance tempo, require advanced harmonic navigation and melodic flexibility.


๐Ÿ“š Standard Available in:

The Real Book - Volume I
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