Chord Distribution Analysis

Chord SymbolCountFrequency
Bm615.8%
Em7410.5%
A7410.5%
G/D25.3%
Gb/D25.3%
F/D25.3%
E/D25.3%
Eb/D25.3%

Key Patterns Detected

PatternFunctionFrequency
Em7 -> A7Setup (Major Key)3
F#7b13 -> BmResolution (Minor)2
C#m7b5 -> F#7b9Setup (Minor Key)2
F#7b9 -> BmResolution (Minor)2
A7 -> Dmaj7Resolution (Major)1

Harmonic Highlights

  • The composition utilizes a distinctive chromatic “spiral” of descending major triads (G, Gb, F, E, Eb) over a static D pedal, creating intense non-functional tension before resolving.
  • Employs modal interchange via the Gm chord, which acts as a bridge from the D major/chromatic section back to the functional ii-V-i (C#m7b5 - F#7b9) in the home key of B minor.
  • Frequent use of subdominant minor substitutions and dominant 7th pivot chords (G7, A7) facilitates smooth transitions between the bluesy B minor tonality and the shifting pedal-point structures.

Improvisation Focus Chromatic voice leading and B Aeolian/Dorian minor scales, specifically targeting chord tones during the rapid descending slash-chord sequence.

Difficulty Rating 4/5; the combination of a fast tempo and the non-functional chromatic descent requires advanced melodic navigation and precise rhythmic placement.


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The Real Book - Volume II
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