Chord Distribution Analysis

Chord SymbolCountFrequency
Bb6833.3%
Cm7312.5%
F7312.5%
Eb728.3%
B0728.3%
Eb628.3%
C728.3%
Fm714.2%

Key Patterns Detected

PatternFunctionFrequency
Cm7 -> F7Setup (Major Key)3
Fm7 -> Bb7Setup (Major Key)1

Harmonic Highlights

  • Employs a standard AABA 32-bar structure featuring a I-IV7-I movement in the A sections, utilizing Eb7 as a subdominant color rather than a functional dominant.
  • Utilizes a chromatic passing diminished chord (Bยฐ7) to bridge the tonic Bb6 and the supertonic Cm7, facilitating smooth stepwise bass motion.
  • The B section executes a temporary modulation to the subdominant key (Eb major) via a ii-V (Fm7-Bb7), followed by a secondary dominant (C7) acting as a V/V.
  • Features high-frequency harmonic rhythm during the turnaround, requiring precise navigation of the ii-V-I cadence back to Bb major.

Improvisation Focus The Bb Major Bebop scale and chromatic enclosures to target chord tones at high tempos.

Difficulty Rating 4; the breakneck performance speeds typical of this bebop head require advanced technical facility and rapid-fire harmonic processing.


๐Ÿ“š Standard Available in:

The Real Book - Volume II
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