Chord Distribution Analysis

Chord SymbolCountFrequency
Cmaj758.9%
F9#1147.1%
Bbmaj747.1%
Eb9#1147.1%
Abmaj747.1%
Db9#1147.1%
A735.4%
Em735.4%

Key Patterns Detected

PatternFunctionFrequency
Dm7 -> G7Setup (Major Key)2
Em7 -> A7Setup (Major Key)1
A7 -> Dmaj7Resolution (Major)1

Harmonic Highlights

  • Sequential descending modulations: The structure utilizes parallel whole-step transpositions, cycling through tonal centers of C, Bb, and Ab.
  • Parallel minor shifts: Each key center transitions from Imaj7 to Im7, employing modal interchange to bridge into the next harmonic sequence.
  • Chromatic bridge resolutions: The use of IV9#11 (e.g., F9#11) functions as a dominant-quality pivot, typically resolved via a chromatic V7 (B7) to land on the next target Imaj7 (Bbmaj7).

Improvisation Focus Lydian Dominant scale (Melodic Minor starting on the 4th) to navigate the #11 tensions on the non-functioning dominant chords.

Difficulty Rating 4 (Advanced) because the rapid-fire modulations through parallel keys and whole-step sequences demand exceptional harmonic fluency and transposition skills.


๐Ÿ“š Standard Available in:

The Real Book - Volume III
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