Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Fm7 | 8 | 14.3% |
| Ebmaj7 | 6 | 10.7% |
| Bb7 | 5 | 8.9% |
| Abmaj7 | 4 | 7.1% |
| Gm7b5 | 3 | 5.4% |
| Db7 | 3 | 5.4% |
| Cm7 | 3 | 5.4% |
| C7b13 | 2 | 3.6% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Bb7 -> Ebmaj7 | Resolution (Major) | 3 |
| Fm7 -> Bb7 | Setup (Major Key) | 3 |
| Gm7b5 -> C7b13 | Setup (Minor Key) | 2 |
| C7 -> Fm7 | Resolution (Minor) | 2 |
| Abm7 -> Db7 | Setup (Major Key) | 2 |
| Bbm7 -> Eb7 | Setup (Major Key) | 2 |
| Eb7 -> Abmaj7 | Resolution (Major) | 2 |
| Gm7b5 -> C7#9 | Setup (Minor Key) | 1 |
| C7#9 -> Fm7 | Resolution (Minor) | 1 |
| Abmaj7 -> Db7 | Setup (Major Key) | 1 |
Harmonic Highlights:
- Frequent iiø7-V7alt progressions (e.g.,
Gm7b5-C7b13,C7#9) repeatedly tonicize the minor ii chord (Fm), providing strong melodic tension. - A chromatic ii-V
Abm7-Db7(ii-V of Gb) briefly establishes a non-diatonic center, creating sophisticated color before returning to the home key’s dominant. - The striking
B7(bVI7) functions as a passing chromatic dominant or tritone substitute for V7/V, adding unexpected tension just before the final V7.
Improvisation Focus: Altered Scale (Superlocrian).
Difficulty Rating: 3 (Intermediate) - The tune combines straightforward diatonic movements with several significant chromatic alterations and complex dominant chord types.