Chord Distribution Analysis

Chord SymbolCountFrequency
Gm7711.7%
Am758.3%
C7sus46.7%
C746.7%
Dm746.7%
Fmaj735.0%
Ab0735.0%
Em7b535.0%

Key Patterns Detected

PatternFunctionFrequency
Gm7 -> C7susSetup (Major Key)4
Em7b5 -> A7b9Setup (Minor Key)3
A7b9 -> Dm7Resolution (Minor)3
Gm7 -> C7Setup (Major Key)2
C7 -> Fmaj7Resolution (Major)2
Cm7 -> F7b9Setup (Major Key)2
F7b9 -> Bbmaj7Resolution (Major)2
Dm7 -> G7susSetup (Major Key)2
G7b9 -> Cmaj7Resolution (Major)1
Am7 -> D7b9Setup (Major Key)1
D7b9 -> Gm7Resolution (Minor)1

Harmonic Highlights

  • Utilization of #I°7 (Ab°7) as a chromatic passing chord to bridge the tonic Fmaj7 and the ii-V (Gm7–C7) movement.
  • Chromatic parallel descent (Am7–Ab7–Gm7) where Ab7 functions as a tritone substitute for D7, targeting the ii chord.
  • Frequent secondary dominant sequences, such as F7b9 leading to Bbmaj7, which create brief tonicizations of the IV chord.
  • Usage of #IV°7 (B°7) to provide a chromatic ascent from the subdominant toward the tonic or dominant.

Improvisation Focus F Major Bebop Scale (integrating chromatic passing tones to navigate diminished and dominant substitutions).

Difficulty Rating 3/5. The moderate tempo allows time for melodic development, but the frequent chromatic passing chords and diminished substitutions require precise harmonic navigation.