Chord Distribution Analysis

Chord SymbolCountFrequency
Fmaj7225.0%
Bbmaj7225.0%
Eb7225.0%
Bm7112.5%
E7b13112.5%

Key Patterns Detected

PatternFunctionFrequency
Bm7 -> E7b13Setup (Major Key)1
Bbmaj7 -> Eb7Setup (Major Key)1

  • Establishes D minor tonality through the use of bIIImaj7 (Fmaj7) and bVImaj7 (Bbmaj7) chords, common in minor key modal interchanges.
  • Features a sophisticated ii-V-i progression (Bm7 - E7b13) that targets the minor v chord (A minor), adding harmonic tension.
  • Utilizes Eb7 as a bII7 (backdoor dominant) to D minor, creating a distinctive jazz sound and setting up a clear resolution.

Improvisation Focus: Accurately outlining specific chord qualities, particularly the altered dominant (E7b13) and backdoor dominant (Eb7).

Difficulty Rating: 3 (Intermediate). Requires understanding of minor key harmony, secondary dominants, and specific altered dominant and substitution concepts.