Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Am7 | 7 | 13.5% |
| Dm7 | 7 | 13.5% |
| G7 | 7 | 13.5% |
| Cmaj7 | 4 | 7.7% |
| Fmaj7 | 3 | 5.8% |
| C6 | 3 | 5.8% |
| Eb07 | 3 | 5.8% |
| C#07 | 2 | 3.8% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Dm7 -> G7 | Setup (Major Key) | 6 |
| G7 -> Cmaj7 | Resolution (Major) | 3 |
Harmonic Highlights:
- The frequent deployment of chromatic diminished chords (e.g., C#07, Eb07, F#07) functions as passing or secondary dominant substitutes, adding characteristic jazz color.
- Altered dominant chords like C7#5 and E7#5 create tension, often resolving deceptively or with chromatic voice leading, adding harmonic surprise before the Fmaj7.
- The use of Bb7#11 (bVII7) as a “backdoor” dominant resolving to Cmaj (C6) provides a quintessential jazz sound with its Lydian dominant color.
Improvisation Focus: Altered Scale for navigating the tension-rich dominant chords.
Difficulty Rating: 4 - Intermediate/Advanced. The frequent use of secondary diminished chords, altered dominants, and non-diatonic resolutions demands a sophisticated understanding of jazz harmony.