Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Fmaj7 | 7 | 25.0% |
| Db7 | 3 | 10.7% |
| C7 | 3 | 10.7% |
| G07 | 2 | 7.1% |
| Abm7 | 2 | 7.1% |
| Gbmaj7 | 2 | 7.1% |
| Gm7 | 2 | 7.1% |
| Bbm7 | 1 | 3.6% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Abm7 -> Db7 | Setup (Major Key) | 2 |
| Db7 -> Gbmaj7 | Resolution (Major) | 2 |
| Bbm7 -> Eb7 | Setup (Major Key) | 1 |
| Em7b5 -> A7 | Setup (Minor Key) | 1 |
| A7 -> Dm7 | Resolution (Minor) | 1 |
| Dm7 -> G7 | Setup (Major Key) | 1 |
| C7 -> Fmaj7 | Resolution (Major) | 1 |
| Gm7 -> C7 | Setup (Major Key) | 1 |
Harmonic Highlights:
- Features a direct modulation to the key of Gb major via a clear Abm7-Db7-Gbmaj7 (ii-V-I) progression.
- Incorporates a backdoor dominant function with the Bbm7-Eb7 sequence resolving to Fmaj7, utilizing the bVII7 chord.
- Includes a temporary tonicization of the relative minor, Dm, established by a concise Em7b5-A7-Dm7 (iiø7-V7-i) progression.
- Utilizes a bII7 (Db7) as a tritone substitute leading to the V7 (C7) or directly to the tonic, adding chromatic dominant color.
Improvisation Focus: Navigating altered dominant scales and temporary key centers, particularly those involving bII7 and bVII7.
Difficulty Rating: 4 (Advanced Intermediate) - The frequent modulations, backdoor dominant movements, and tritone substitutions require significant harmonic agility beyond diatonic playing.