Chord Distribution Analysis

Chord SymbolCountFrequency
Dm7513.5%
G7513.5%
A738.1%
F#m725.4%
B7b1325.4%
Em725.4%
Cmaj725.4%
Am725.4%

Key Patterns Detected

PatternFunctionFrequency
Dm7 -> G7Setup (Major Key)5
A7 -> Dm7Resolution (Minor)3
F#m7 -> B7b13Setup (Major Key)2
B7b13 -> Em7Resolution (Minor)2
Em7 -> A7Setup (Major Key)2
G7 -> Cmaj7Resolution (Major)2
Bbm7 -> Eb7Setup (Major Key)1

Harmonic Highlights

  • Starts with a series of descending sequential ii-Vs (ii-V of iii, then ii-V of ii), delaying the tonic arrival until measure 7.
  • Incorporates a sudden modulation to the bVI key (Abmaj7) via a Bbm7-Eb7 progression, a classic Berlin chromatic shift.
  • Employs secondary dominants (A7) to create a cycle-of-fourths momentum toward the G7 turnaround.
  • Features functional chromaticism through the Eø7 to Fm7 movement, facilitating the transition back from the Ab section to the primary key.

Improvisation Focus Voice leading through sequential ii-V-I patterns using guide tones.

Difficulty Rating 3/5; while the melody is diatonic, the frequent secondary ii-V movements and the non-tonic starting chord require intermediate harmonic fluency.