Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Bbm7 | 11 | 19.6% |
| Eb7 | 10 | 17.9% |
| Abmaj7 | 4 | 7.1% |
| Dm7 | 4 | 7.1% |
| G7 | 4 | 7.1% |
| Cm7 | 3 | 5.4% |
| F7 | 3 | 5.4% |
| Db7 | 2 | 3.6% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Bbm7 -> Eb7 | Setup (Major Key) | 9 |
| Eb7 -> Bbm7 | Resolution (Minor) | 5 |
| Dm7 -> G7 | Setup (Major Key) | 4 |
| Eb7 -> Abmaj7 | Resolution (Major) | 3 |
| Abmaj7 -> Db7 | Setup (Major Key) | 2 |
| Cm7 -> F7 | Setup (Major Key) | 2 |
| F7 -> Bbm7 | Resolution (Minor) | 2 |
| G7 -> Dm7 | Resolution (Minor) | 2 |
| G7 -> Cmaj7 | Resolution (Major) | 2 |
| Cm7b5 -> F7b9 | Setup (Minor Key) | 2 |
| Cmaj7 -> F7 | Setup (Major Key) | 1 |
| Em7 -> A7 | Setup (Major Key) | 1 |
| A7 -> Dm7 | Resolution (Minor) | 1 |
| F7b9 -> Bbm7 | Resolution (Minor) | 1 |
Harmonic Highlights:
- The opening immediately establishes the relative major (Ab) of the stated F minor key via
Bbm7-Eb7-Abmaj7, a common jazz approach to minor key standards. - A significant modulation to C Major is evident with the
Dm7-G7-Cmaj7progression, temporarily shifting the tonic. - The
Db7chord, following Abmaj7, functions as a tritone substitution (for G7) or a backdoor dominant, adding harmonic color.
Improvisation Focus: Navigating ii-V-I progressions across multiple tonicizations.
Difficulty Rating: 4 (Advanced Intermediate). The frequent modulations and non-diatonic chord movements necessitate a strong grasp of multiple key centers and advanced chord-scale application.