Chord Distribution Analysis

Chord SymbolCountFrequency
Dmaj7216.7%
Cmaj7216.7%
Em718.3%
A718.3%
Dm718.3%
G718.3%
Cm718.3%
F718.3%

Key Patterns Detected

PatternFunctionFrequency
Em7 -> A7Setup (Major Key)1
A7 -> Dmaj7Resolution (Major)1
Dm7 -> G7Setup (Major Key)1
G7 -> Cmaj7Resolution (Major)1
Cm7 -> F7Setup (Major Key)1
F7 -> Bbmaj7Resolution (Major)1

Harmonic Highlights

  • Sequential ii-V-I Progressions: The form descends symmetrically by whole steps, cycling through D major, C major, and Bb major key centers.
  • Modular Tonality: Each 4-bar segment establishes a temporary tonic (Imaj7) before dropping a whole step to the next iim7.
  • Harmonic Rhythm: The structure uses a consistent 2-bar ii-V and 2-bar Imaj7 distribution, providing a predictable but fast-moving harmonic pace.
  • Terminal Turnaround: The final phrase utilizes a Gm7 to C7 (or similar) to bridge the Bb major section back to the home key of D major.

Improvisation Focus Voice-led navigation of descending major ii-V-I patterns using guide tones.

Difficulty Rating 3 (Intermediate) because the repetitive sequences are logically structured, but the rapid whole-step modulations at high tempos require significant technical facility.


๐Ÿ“š Standard Available in:

The Real Book - Volume I
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