Chord Distribution Analysis

Chord SymbolCountFrequency
Ab721.9%
Bb/Ab39.4%
Bbm7b539.4%
Fm26.2%
B26.2%
C#m26.2%
Eb26.2%
E26.2%

No obvious ii-V patterns detected.


Harmonic Highlights

  • The opening I to II/I (Ab to Bb/Ab) movement creates a distinct Lydian soundscape, utilizing a major supertonic over a tonic pedal to build tension.
  • A sudden chromatic mediant modulation shifts the harmony from Ab major to B major, bridged by an enharmonic F#7/Gb7 pivot.
  • The progression employs Bbm7b5 to Eb7 as a minor ii-V7 turnaround, providing a dark, subdominant minor resolution back to the Ab major tonic.

Improvisation Focus Navigating the abrupt modulation between the Ab major and B major tonal centers using the respective Lydian and Ionian scales.

Difficulty Rating 4/5. The frequent shifts to distantly related keys and the non-standard formal structure require advanced harmonic navigation and precise melodic phrasing.


๐Ÿ“š Standard Available in:

The Real Book - Volume V
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