Chord Distribution Analysis

Chord SymbolCountFrequency
Fmaj7822.9%
Gm7411.4%
C7411.4%
D7b925.7%
Cm725.7%
F725.7%
Bbmaj7#1125.7%
G7b925.7%

Key Patterns Detected

PatternFunctionFrequency
Gm7 -> C7Setup (Major Key)4
C7 -> Fmaj7Resolution (Major)3
Cm7 -> F7Setup (Major Key)2
D7b9 -> Gm7Resolution (Minor)1
F7 -> Bbmaj7#11Resolution (Major)1
G7b9 -> Cm7Resolution (Minor)1
C7#9 -> Fmaj7Resolution (Major)1
Em7b5 -> A7b9Setup (Minor Key)1
D7#11 -> Gm7Resolution (Minor)1

Harmonic Highlights:

  • Frequent tonicizations to Bb major (Cm7-F7-Bbmaj7#11) emphasize a Lydian sound with the #11.
  • Altered dominant chords (D7b9, G7b9, C7#9) provide consistent harmonic tension and color.
  • Secondary dominant progressions, such as D7b9 leading to Gm7 (V/ii), drive harmonic motion.

Improvisation Focus: Navigating Altered and Lydian scales to precisely voice the harmony’s specific tension and color.

Difficulty Rating: 4 (Advanced) because the frequent altered dominants and Lydian #11 chords demand sophisticated scale application beyond diatonic improvisation.