Chord Distribution Analysis

Chord SymbolCountFrequency
Bb7642.9%
Eb7321.4%
Cm7214.3%
F7214.3%
G717.1%

Key Patterns Detected

PatternFunctionFrequency
Cm7 -> F7Setup (Major Key)2
G7 -> Cm7Resolution (Minor)1

Harmonic Highlights

  • Executes a standard 12-bar blues progression in Bb, transitioning to the subdominant Eb7 in measures 2 and 5 to establish a classic blues framework.
  • Employs a ii-V-I cadence (Cm7 - F7 - Bb7) in the final four-bar phrase, providing a functional jazz resolution compared to traditional V-IV-I blues endings.
  • Integrates a secondary dominant G7 (the VI chord) in the final turnaround to create a strong chromatic pull toward the ii chord (Cm7) for cyclical repetition.

Improvisation Focus The Bb Blues scale (Bb, Db, Eb, E, F, Ab), as the tune’s minimalist melody relies on these “blue notes” to bridge the gap between dominant chord changes.

Difficulty Rating 1 (Beginner): The slow harmonic rhythm and predictable 12-bar structure make it one of the most accessible vehicles for learning jazz improvisation and blues form.


📚 Standard Available in:

The Real Book - Volume V
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