Chord Distribution Analysis

Chord SymbolCountFrequency
Bb7728.0%
F7416.0%
D7312.0%
Ab7312.0%
G7312.0%
C7312.0%
Eb714.0%
E0714.0%

No obvious ii-V patterns detected.


Harmonic Highlights

  • Uses a compressed 16-bar form that sequences secondary dominants (VI7 - II7 - V7) to create a sense of perpetual motion toward the tonic.
  • The Ab7 serves as a tritone substitute for D7 (V/VI) or a chromatic passing chord leading to G7, providing a sophisticated blues-inflected harmonic bridge.
  • Employs a classic gospel-influenced IV7 to #iv°7 (Eb7 to E°7) progression in the second half, facilitating a smooth return to the Bb7 tonic.

Improvisation Focus The Bb Major Blues scale combined with chord-tone targeting to navigate the shifting dominant 7th harmonies.

Difficulty Rating 2/5: The repetitive structure and moderate tempo make it approachable, though soloists must move beyond the home key to address the secondary dominants effectively.


📚 Standard Available in:

The Real Book - Volume II
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