Chord Distribution Analysis

Chord SymbolCountFrequency
Am7715.6%
Bm748.9%
E748.9%
D736.7%
Abmaj736.7%
F736.7%
Bbmaj736.7%
Am/maj724.4%

Key Patterns Detected

PatternFunctionFrequency
Bm7 -> E7Setup (Major Key)3
E7 -> Am7Resolution (Minor)3
Am7 -> D7Setup (Major Key)3
Bbm7 -> Eb7Setup (Major Key)2
Eb7 -> Abmaj7Resolution (Major)2
Cm7 -> F7Setup (Major Key)2
F7 -> Bbmaj7Resolution (Major)2
F#7 -> Bmaj7Resolution (Major)1
Bmaj7 -> E7Setup (Major Key)1
F7 -> Bbm7Resolution (Minor)1
Gm7 -> C7Setup (Major Key)1

Harmonic Highlights

  • The opening employs a chromatic line cliché (Am7 - Am/maj7 - Am7 - Am6), necessitating precise voice leading of the internal descending line (A-G#-G-F#).
  • A sudden modulation occurs from A minor to B major, a non-diatonic whole-step shift that creates a bright, theatrical lift in the harmonic center.
  • The sequence Bm7 - C7#11 - Bm7 uses a chromatic neighbor chord (C7#11), acting as a tritone substitute for F#7 to prolong the ii-V movement in A minor or prepare the B major tonality.

Improvisation Focus The A Melodic Minor scale and its modes, specifically for navigating the line cliché and the C7#11 (Lydian Dominant).

Difficulty Rating 4/5. Rapid modulations to distant keys and the specific management of minor-major tonalities require advanced harmonic awareness and fluid scale switching.


📚 Standard Available in:

The Real Book - Volume II
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