Chord Distribution Analysis

Chord SymbolCountFrequency
Fm7919.1%
Bb7612.8%
Eb6510.6%
Gm7510.6%
C7b936.4%
Ebm724.3%
F724.3%
C#m712.1%

Key Patterns Detected

PatternFunctionFrequency
Fm7 -> Bb7Setup (Major Key)4
Gm7 -> C7b9Setup (Major Key)3
C7b9 -> Fm7Resolution (Minor)3
Bb7 -> Ebm7Resolution (Minor)1
C#m7 -> F#7Setup (Major Key)1
F#7 -> Bmaj7Resolution (Major)1
Fm7b5 -> Bb7b13Setup (Minor Key)1
Bb7b13 -> Ebm7Resolution (Minor)1
Fm7 -> Bb7susSetup (Major Key)1
Bbm7 -> Eb7Setup (Major Key)1
Eb7 -> Abmaj7Resolution (Major)1
Abm7 -> Db7Setup (Major Key)1
Gm7 -> C7Setup (Major Key)1
Fm7/Bb -> Bb7Setup (Major Key)1

Harmonic Highlights

  • Features a stepwise diatonic ascent (I–ii–iii) leading into a VI7 (C7b9) secondary dominant, facilitating a circular ii–V–I motion back to the tonic.
  • The bridge executes a bold modulation to B major—a chromatic mediant relationship—initiated by a C#m7–F#7 ii–V progression.
  • Harmonic tension is heightened through parallel minor interchanges (Ebm7) and the use of minor ii–V–I turnarounds (Fm7b5–Bb7b13) to pivot back to the home key.

Improvisation Focus

Navigating the abrupt tonal shift to the B major bridge while maintaining smooth voice leading through the C7b9 to Fm7 resolutions.

Difficulty Rating

3/5: The A sections are standard diatonic jazz vocabulary, but the bridge’s distant modulation and subsequent minor ii–V turnarounds require intermediate harmonic navigation.