Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Abmaj7 | 7 | 14.6% |
| Ebmaj7 | 4 | 8.3% |
| Fm7 | 4 | 8.3% |
| Bb7 | 4 | 8.3% |
| F7 | 3 | 6.2% |
| Ebmaj7/G | 2 | 4.2% |
| A7#11 | 2 | 4.2% |
| Gm7 | 2 | 4.2% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Gm7 -> C7 | Setup (Major Key) | 2 |
| Fm7 -> Bb7 | Setup (Major Key) | 2 |
| Bbm7 -> Eb7 | Setup (Major Key) | 2 |
| Eb7 -> Abmaj7 | Resolution (Major) | 2 |
| F7 -> Bbm7 | Resolution (Minor) | 1 |
| Gm7b5 -> C7b9 | Setup (Minor Key) | 1 |
| C7b9 -> Fm | Resolution (Minor) | 1 |
| Em7 -> A7 | Setup (Major Key) | 1 |
| Bb7 -> Ebmaj7 | Resolution (Major) | 1 |
Harmonic Highlights:
- Prominent use of tritone substitution, notably A7#11 (substituting Eb7 for V7/IV) and B7 (substituting F7 for V7/Bb).
- Frequent secondary dominants (e.g., C7 to Fm, F7 to Bb) create strong temporary harmonic pulls away from the tonic.
- Incorporation of non-diatonic chords like Bbm7 (iv minor) for color, and Gm7b5 functioning as viiø7/IV.
Improvisation Focus: Altered dominant scales (Altered, Lydian Dominant) and precise arpeggio outlining for the frequent non-diatonic and substituted dominant chords.
Difficulty Rating: 4 (Advanced). The dense progression features numerous tritone substitutions, secondary dominants, and non-diatonic chords, demanding sophisticated harmonic navigation.