Chord Distribution Analysis

Chord SymbolCountFrequency
Fm7717.1%
Bb7717.1%
Ebmaj737.3%
Cm737.3%
Gb0724.9%
Bbm724.9%
Eb724.9%
Abmaj724.9%

Key Patterns Detected

PatternFunctionFrequency
Fm7 -> Bb7Setup (Major Key)7
Bbm7 -> Eb7Setup (Major Key)2
Eb7 -> Abmaj7Resolution (Major)2
Bb7 -> Ebmaj7Resolution (Major)2
Bmaj7 -> E7#11Setup (Major Key)1
Ebm7 -> Ab7Setup (Major Key)1
Ab7 -> Dbm7Resolution (Minor)1
Dbm7 -> Gb7Setup (Major Key)1
C7 -> Fm7Resolution (Minor)1

Harmonic Highlights:

  • Utilizes a #iio7 (Gb°7) passing chord to create chromatic voice leading between the Imaj7 (Ebmaj7) and iim7 (Fm7).
  • Employs a secondary ii-V (Bbm7-Eb7) to target the IVmaj7 (Abmaj7), followed by a #ivo7 (A°7) leading to the iii (Gm7).
  • Features a radical chromatic mediant modulation in the bridge, shifting from Eb major to B major via sequential descending ii-V progressions (Ebm7-Ab7 to Dbm7-Gb7).

Improvisation Focus: Navigating the bridge’s abrupt tonal shift and chromatic ii-V sequences.

Difficulty Rating: 4/5. The sophisticated bridge modulation and frequent use of diminished passing chords require advanced harmonic awareness and precise voice leading.


📚 Standard Available in:

The Real Book - Volume II
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