Chord Distribution Analysis

Chord SymbolCountFrequency
Ebmaj7517.9%
Fm7414.3%
Bb7414.3%
Eb7310.7%
Abmaj727.1%
Db7#1127.1%
Ab627.1%
A0727.1%

Key Patterns Detected

PatternFunctionFrequency
Fm7 -> Bb7Setup (Major Key)4
Eb7 -> Abmaj7Resolution (Major)2
Abmaj7 -> Db7#11Setup (Major Key)2
Bb7 -> Ebmaj7Resolution (Major)2
C7b9 -> Fm7Resolution (Minor)1

Harmonic Highlights:

  • The Db7#11 (bVII7) resolving to Fm7 (ii) rather than the tonic (Ebmaj7) offers a sophisticated backdoor dominant variation.
  • Intricate voice leading is evident in the A07 (vii°7 of Bb) resolving to Eb6/Bb, creating a smooth, sustained pull towards the tonic.
  • Standard secondary dominants, notably Eb7 (V7/IV) and C7b9 (V7/ii), are used to articulate and expand the core ii-V-I harmonic movement.

Improvisation Focus: Eb Major scale and its diatonic modes (Mixolydian for dominants, Dorian for minors).

Difficulty Rating: 3 (Intermediate). The interplay of secondary dominants, backdoor variations, and diminished chord resolutions requires attentive harmonic understanding.