Chord Distribution Analysis

Chord SymbolCountFrequency
Gmaj7513.5%
Cmaj7410.8%
Am7410.8%
D7410.8%
A738.1%
Cm725.4%
F725.4%
Bbm725.4%

Key Patterns Detected

PatternFunctionFrequency
Am7 -> D7Setup (Major Key)4
Cm7 -> F7Setup (Major Key)2
Bbm7 -> Eb7Setup (Major Key)2
Em7 -> A7Setup (Major Key)2
Dm7 -> G7Setup (Major Key)2
D7 -> Gmaj7Resolution (Major)1
G7 -> Cmaj7Resolution (Major)1
F#m7b5 -> B7b9Setup (Minor Key)1
B7b9 -> Em7Resolution (Minor)1

  • Harmonic Highlights:

    • Frequent use of ii-V progressions to tonicize both diatonic and chromatic key centers (e.g., Bbm7 - Eb7 to Ab, Dm7 - G7 to C).
    • The Cm7 - F7 progression resolves to Gmaj7, acting as a backdoor dominant (bVII7) to the tonic or a ii-V of Bb resolving unexpectedly.
    • Standard diatonic ii-V-I resolution in G major (Am7 - D7 - Gmaj7) provides grounding amidst chromaticism.
    • Clear temporary modulation to the subdominant key (C major) via a strong Dm7 - G7 - Cmaj7 progression.
  • Improvisation Focus: Navigating frequent ii-V changes and temporary modulations effectively.

  • Difficulty Rating: 3. Requires awareness of frequent ii-V changes, chromatic alterations, and temporary modulations beyond the tonic key.