Chord Distribution Analysis

Chord SymbolCountFrequency
Dm7613.6%
G7613.6%
A749.1%
Emaj749.1%
Cmaj736.8%
B736.8%
Eb0724.5%
Em724.5%

Key Patterns Detected

PatternFunctionFrequency
Dm7 -> G7Setup (Major Key)6
A7 -> Dm7Resolution (Minor)4
Em7 -> A7Setup (Major Key)2
G7 -> Cmaj7Resolution (Major)1
F#m7 -> B7Setup (Major Key)1
B7 -> Emaj7Resolution (Major)1
A#m7b5 -> D#7b9Setup (Minor Key)1
D#7b9 -> G#m7Resolution (Minor)1
G#m7 -> C#7Setup (Major Key)1
Gm7 -> C7Setup (Major Key)1
C7 -> Fmaj7Resolution (Major)1
Fmaj7 -> Bb7Setup (Major Key)1

Harmonic Highlights:

  • The progression utilizes a #I diminished chord (Ebº7) as a chromatic passing tone to connect the tonic Cmaj7 to the iim7.
  • Sequential chains of secondary dominants (III7-VI7-II7-V7) drive the harmonic rhythm, demanding precise voice leading.
  • The bridge executes a sudden tertiary modulation to E major (the major mediant), shifting the tonal center significantly from the home key.
  • The return to C major employs a complex re-transition using a series of chromatic ii-Vs, starting from A#m7b5.
  1. Improvisation Focus: Navigating the abrupt tonal shift to E major during the bridge while maintaining melodic lyricism.

  2. Difficulty Rating: 4 (Advanced) — The 64-bar structure and sophisticated modulation to a remote key require high-level harmonic awareness and technical fluency.