Chord Distribution Analysis

Chord SymbolCountFrequency
Bm7923.1%
E7923.1%
Amaj7717.9%
Dmaj737.7%
F#m725.1%
B725.1%
A625.1%
G#m7b512.6%

Key Patterns Detected

PatternFunctionFrequency
Bm7 -> E7Setup (Major Key)9
E7 -> Amaj7Resolution (Major)5
E7 -> Bm7Resolution (Minor)1
G#m7b5 -> C#7b9Setup (Minor Key)1
C#7b9 -> F#m7Resolution (Minor)1
F#m7 -> B7Setup (Major Key)1
E7/G# -> Amaj7Resolution (Major)1
F#7 -> Bm7Resolution (Minor)1

Harmonic Highlights

  • Employs a persistent I - ii - V turnaround (Amaj7 - Bm7 - E7) to establish a strong tonic center and a rhythmic “swing” feel.
  • Utilizes a secondary ii - V - i progression (G#m7b5 - C#7b9 - F#m7) to modulate momentarily toward the relative minor (vi).
  • Features the B7 (II7) chord as a secondary dominant (V/V), creating harmonic tension that resolves through the dominant E7 back to the tonic.
  • Relies on standard functional harmony where most chords are derived directly from the A major scale, ensuring a melodic and accessible structure.

Improvisation Focus A Major Scale (Ionian) combined with the use of the F# Harmonic Minor scale over the C#7b9 chord to highlight the pull to the relative minor.

Difficulty Rating 2/5: The progression is mostly diatonic and follows predictable functional jazz patterns, making it accessible for musicians learning to navigate basic secondary dominants.


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The Real Book - Volume III
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