Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Abmaj7 | 4 | 25.0% |
| Eb7 | 2 | 12.5% |
| A7#11 | 2 | 12.5% |
| Gm7b5 | 1 | 6.2% |
| C7b9 | 1 | 6.2% |
| Fm7 | 1 | 6.2% |
| Db7 | 1 | 6.2% |
| Bb7 | 1 | 6.2% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Abmaj7 -> Eb7 | Setup (Major Key) | 1 |
| Gm7b5 -> C7b9 | Setup (Minor Key) | 1 |
| C7b9 -> Fm7 | Resolution (Minor) | 1 |
| Db7#11 -> Abmaj7 | Resolution (Major) | 1 |
| Bbm7 -> Eb7 | Setup (Major Key) | 1 |
| Eb7 -> Abmaj7 | Resolution (Major) | 1 |
Harmonic Highlights:
- Classic ii-V-I progressions (e.g., Bbm7-Eb7-Abmaj7) provide familiar harmonic grounding within the Ab major key center.
- Frequent use of backdoor dominant resolutions is evident, notably Db7 and Db7#11 leading to the tonic Abmaj7.
- Advanced chromaticism is introduced through tritone substitutions (B7 to Bbm7) and sustained, non-functional altered dominant chords like A7#11.
Improvisation Focus: Altered Dominant Scales.
Difficulty Rating: 4 (Advanced) due to the frequent use of non-diatonic dominant chords, tritone substitutions, and quick, complex harmonic shifts.