Chord Distribution Analysis

Chord SymbolCountFrequency
Fm7620.0%
Ebmaj7310.0%
Gm7310.0%
Bb7310.0%
E0726.7%
Abm726.7%
Gb0726.7%
Db713.3%

Key Patterns Detected

PatternFunctionFrequency
Fm7 -> Bb7Setup (Major Key)3
Abm7 -> Db7Setup (Major Key)1
C7 -> Fm7Resolution (Minor)1
Fm7/Bb -> Bb7#5Setup (Major Key)1
Bb7#5 -> Ebmaj7Resolution (Major)1

Harmonic Highlights

  • Employs chromatic passing diminished chords (#I°7 and bIII°7) to create fluid voice leading between the I, iim7, and iiim7 functions.
  • Features a “backdoor” ii-V progression (Abm7 - Db7) that acts as a subdominant minor substitution resolving toward the tonic.
  • Utilizes a #IV°7 (A°7) passing chord to bridge the IV chord back to the tonic, a characteristic device in Broadway-style jazz.
  • Incorporates secondary dominants (C7) and altered tensions (Bb7#5) to strengthen the resolution of the standard I-VI-ii-V turnarounds.

Improvisation Focus Eb Major Bebop scale (to effectively navigate the diatonic framework while highlighting chromatic passing tones).

Difficulty Rating 2/5 — While the chromatic diminished chords require precision, the underlying harmonic structure is a straightforward major-key cycle with predictable resolutions.


📚 Standard Available in:

The Real Book - Volume II
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