Chord Distribution Analysis

Chord SymbolCountFrequency
Gm7922.5%
F6717.5%
C7512.5%
F#07410.0%
A0737.5%
Bb625.0%
Abmaj725.0%
Bbm712.5%

Key Patterns Detected

PatternFunctionFrequency
Gm7 -> C7Setup (Major Key)5
Bbm7 -> Eb7Setup (Major Key)1
Eb7 -> Abmaj7Resolution (Major)1
Dm7 -> G7Setup (Major Key)1
Gm7 -> C7#5Setup (Major Key)1
C7#5 -> Gm7Resolution (Minor)1

Harmonic Highlights

  • Utilizes F#°7 as a secondary leading-tone chord (vii°7/ii) to facilitate smooth chromatic voice leading between the tonic F6 and the supertonic Gm7.
  • Executes a distinct modulation to Ab Major (the bIII) via a Bbm7–Eb7 (ii–V) sequence, introducing a “parallel shift” harmonic color.
  • Features diminished passing chords such as A°7 to pivot toward the subdominant (Bb6), maintaining harmonic momentum through the middle sections.
  • Relies on functional ii–V–I progressions in F Major to anchor the form before and after the modulatory excursions.

Improvisation Focus Tonal center shifting, specifically targeting chord tones to navigate the transition from F Major to the Ab Major modulation.

Difficulty Rating 3/5: The primary sections are diatonic, but the abrupt shift to the bIII key requires intermediate-level awareness of non-parallel tonal centers.


📚 Standard Available in:

The Real Book - Volume I
🛒 Buy on Amazon
As an Amazon Associate I earn from qualifying purchases. Check the Hal Leonard Jazz Song Finder to make sure that the standard is indeed in the book before buying it.