Chord Distribution Analysis

Chord SymbolCountFrequency
Gmaj7616.2%
Am7513.5%
D7513.5%
D7#5410.8%
Em738.1%
A738.1%
Bm725.4%
E725.4%

Key Patterns Detected

PatternFunctionFrequency
Am7 -> D7Setup (Major Key)5
Gmaj7 -> D7#5Setup (Major Key)4
D7#5 -> Gmaj7Resolution (Major)4
Em7 -> A7Setup (Major Key)3
Bm7 -> E7Setup (Major Key)2
Dm7 -> G7Setup (Major Key)1
G7 -> Cmaj7Resolution (Major)1
Cmaj7 -> G7#5Setup (Major Key)1
B7 -> Em7Resolution (Minor)1
D7 -> Am7Resolution (Minor)1
D7 -> Gmaj7Resolution (Major)1

Harmonic Highlights

  • Employs a circular I-iii-VI-ii-V progression (Gmaj7-Bm7-E7-Am7-D7), utilizing the VI7 (E7) as a secondary dominant to the ii chord.
  • The bridge features a classic modulation to the subdominant (IV) key center of C Major via a Dm7-G7 (ii-V/IV) cadence.
  • Secondary dominants such as A7 (V/V) and B7 (V/vi) introduce chromaticism while maintaining functional stability within the G major tonality.
  • The D7#5 acts as an altered turnaround, providing melodic tension via the #5 (Bb/A#) that resolves smoothly to the tonic.

Improvisation Focus Target-tone mapping over ii-V-I cadences, specifically highlighting the 3rds of the secondary dominants (G# for E7, C# for A7).

Difficulty Rating 2/5: The harmonic rhythm is predictable and the modulations follow standard functional jazz patterns, making it highly accessible for intermediate players.


๐Ÿ“š Standard Available in:

The Real Book - Volume II
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