Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Bbmaj7 | 5 | 14.7% |
| Cm7 | 4 | 11.8% |
| F7 | 4 | 11.8% |
| Dm7 | 4 | 11.8% |
| Db07 | 3 | 8.8% |
| Em7b5 | 3 | 8.8% |
| A7b9 | 3 | 8.8% |
| Bb7 | 2 | 5.9% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Cm7 -> F7 | Setup (Major Key) | 4 |
| Em7b5 -> A7b9 | Setup (Minor Key) | 3 |
| A7b9 -> Dm7 | Resolution (Minor) | 3 |
| Bb7 -> Ebmaj7 | Resolution (Major) | 2 |
| F7 -> Bbmaj7 | Resolution (Major) | 2 |
| Dm7 -> G7 | Setup (Major Key) | 1 |
| G7 -> Cm7 | Resolution (Minor) | 1 |
Harmonic Highlights:
- Employs the classic I-I7-IV-iv progression (Bbmaj7-Bb7-Ebmaj7-Ebm6), introducing a characteristic subdominant minor color.
- Features an extended, repeated iiø-V progression in D minor (Em7b5-A7b9 resolving to Dm7), creating a prolonged temporary tonicization of the iii chord.
- Utilizes Db07 as a chromatic passing diminished chord, adding tension and leading into the subsequent ii-V, often functioning as a substitute for A7b9 or Gb7.
- The progression to Bm7b5 leading into Em7b5-A7b9 introduces further chromaticism and re-contextualizes the Dm7.
Improvisation Focus: Navigating ii-V progressions using arpeggios and appropriate modal scales, particularly D Dorian over Em7b5-A7b9.
Difficulty Rating: 3 (Intermediate). The tune combines standard major ii-V-I progressions with extended secondary dominant sequences and chromatic passing chords requiring careful harmonic navigation.