Chord Distribution Analysis

Chord SymbolCountFrequency
Gm7717.1%
C7717.1%
Dm749.8%
Abmaj749.8%
F737.3%
F637.3%
Bbm737.3%
Eb737.3%

Key Patterns Detected

PatternFunctionFrequency
Gm7 -> C7Setup (Major Key)7
Bbm7 -> Eb7Setup (Major Key)3
Eb7 -> Abmaj7Resolution (Major)3
F7 -> Bbm7Resolution (Minor)2
C7 -> Fmaj7Resolution (Major)1
D7 -> Gm7Resolution (Minor)1
Cm7 -> F7Setup (Major Key)1
F7 -> Bbmaj7Resolution (Major)1
C7 -> Gm7Resolution (Minor)1

Harmonic Highlights

  • The A section utilizes a classic I-vi-ii-V turnaround in F major, often substituting the diatonic Dm7 with a secondary dominant (D7) to intensify the pull toward Gm7.
  • A brief modulation to the subdominant (Bbmaj7) is achieved via a ii-V (Cm7-F7), adding harmonic variety to the primary theme.
  • The composition is noted for its sophisticated bridge, which typically executes a sudden chromatic modulation to Gb major (bII), requiring precise navigation of a key center distant from the tonic.
  • Frequent cycling of fifths provides a strong forward motion, characteristic of Kern’s melodic and harmonic integration.

Improvisation Focus Guide-tone targeting and the F major bebop scale to navigate the rapid ii-V-I turnarounds and the bridge’s key shift.

Difficulty Rating 3/5: While the A sections consist of standard diatonic cycles, the bridge’s sudden half-step modulation requires intermediate-level harmonic awareness and voice-leading skills.


📚 Standard Available in:

The Real Book - Volume II
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