Chord Distribution Analysis

Chord SymbolCountFrequency
Dm7313.6%
Cm7313.6%
Bbmaj729.1%
Em729.1%
A729.1%
Abmaj729.1%
G729.1%
Gbmaj729.1%

Key Patterns Detected

PatternFunctionFrequency
Em7 -> A7Setup (Major Key)2
Dm7 -> G7Setup (Major Key)2
Cm7 -> F7Setup (Major Key)2
A7 -> Em7Resolution (Minor)1
G7 -> Dm7Resolution (Minor)1
F7 -> Cm7Resolution (Minor)1
Dm7 -> G7b9Setup (Major Key)1
G7b9 -> Cm7Resolution (Minor)1
Cm7 -> F7b9Setup (Major Key)1

Harmonic Highlights

  • Employs a chromatic descending sequence of Major 7th chords (Bbmaj7, Abmaj7, Gbmaj7) that function as shifting pivots for subsequent modulations.
  • Utilizes secondary ii-V cells (Em7-A7, Dm7-G7, Cm7-F7) that resolve deceptively down a half-step to the next Major 7th chord, creating a signature “drifting” Bossa Nova aesthetic.
  • Features a systematic modulation through multiple tonal centers (D minor, C minor) before eventually returning to the F major tonic.

Improvisation Focus Sequential Transposition: Shifting melodic motifs down a major second to match the parallel ii-V movements.

Difficulty Rating 3/5. The symmetrical structure is predictable and easy to memorize, but the frequent chromatic shifts require fluent navigation of three distinct key centers in rapid succession.


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The Real Book - Volume I
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