Chord Distribution Analysis

Chord SymbolCountFrequency
C7714.6%
Gm7612.5%
F6510.4%
Cm748.3%
F36.2%
Fmaj736.2%
Faug24.2%
Am7b524.2%

Key Patterns Detected

PatternFunctionFrequency
Gm7 -> C7Setup (Major Key)4
Am7b5 -> D7b9Setup (Minor Key)2
C7 -> Gm7Resolution (Minor)2
Cm7 -> F7Setup (Major Key)2
D7b9 -> GmResolution (Minor)1
Gm6 -> C7Setup (Major Key)1
F7 -> Cm7Resolution (Minor)1
F7 -> Bbmaj7Resolution (Major)1
D7b9 -> Gm7Resolution (Minor)1

Harmonic Highlights

  • The opening utilizes a line clichĂ© (5-#5-6) over the F tonic, creating internal chromatic movement common in “Great American Songbook” standards.
  • Chromatic passing diminished chords (F#°7 and G#°7) provide smooth voice-leading transitions between the I, ii, and iii degrees.
  • A secondary ii-V-i progression (Am7b5–D7b9–Gm) targets the supertonic, introducing minor-key tension within a major-key framework.
  • The progression frequently employs ii-V cycles (Cm7–F7) to tonicize the subdominant (Bb), expanding the harmonic palette beyond simple diatonicism.

Improvisation Focus F Major Bebop scale, with specific attention to chord-tone targeting of secondary dominants (like the b9 on D7).

Difficulty Rating 2/5: The harmonic structure follows predictable diatonic cycles and common jazz turnarounds, making it highly accessible for intermediate improvisers.


📚 Standard Available in:

The Real Book - Volume III
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