Chord Distribution Analysis

Chord SymbolCountFrequency
Bb7510.0%
D748.0%
G7#536.0%
Dm736.0%
Ab736.0%
C736.0%
B736.0%
G736.0%

Key Patterns Detected

PatternFunctionFrequency
Cmaj7 -> G7#5Setup (Major Key)2
Em7b5 -> A7b9Setup (Minor Key)2
A7b9 -> Dm7Resolution (Minor)2
Am7 -> D7Setup (Major Key)2
Em7 -> A7#5Setup (Major Key)1
G7#5 -> Cmaj7Resolution (Major)1
Dm7 -> G7Setup (Major Key)1

Harmonic Highlights

  • Extensive use of minor ii-V-i cells (Em7b5โ€“A7b9โ€“Dm7) that provide a melancholic tonicization of the ii chord relative to the G major center.
  • Chromatic descending ii-V sequences (Bm7โ€“Bbm7โ€“Am7โ€“D7) which create a sophisticated bridge between distant tonal areas through parallel motion.
  • Frequent use of tritone substitutions (Ab7 for D7) and secondary dominants (C7, B7, Bb7) that delay resolution and thicken the harmonic texture.

Improvisation Focus Continuous voice leading through guide tones (3rds and 7ths) to maintain melodic logic across rapid, chromatic root movements.

Difficulty Rating 4/5; the dense chromaticism and non-diatonic shifts require advanced harmonic fluency and precise timing to navigate the frequent temporary modulations.


๐Ÿ“š Standard Available in:

The Real Book - Volume I
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