Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Ebmaj7 | 7 | 23.3% |
| Fm7 | 5 | 16.7% |
| Bb7 | 5 | 16.7% |
| C7#9 | 2 | 6.7% |
| Bbmaj7 | 2 | 6.7% |
| Eb6 | 2 | 6.7% |
| Cm7 | 1 | 3.3% |
| F7 | 1 | 3.3% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Fm7 -> Bb7 | Setup (Major Key) | 5 |
| Bb7 -> Fm7 | Resolution (Minor) | 3 |
| C7#9 -> Fm7 | Resolution (Minor) | 2 |
| Cm7 -> F7 | Setup (Major Key) | 1 |
| F7 -> Bbmaj7 | Resolution (Major) | 1 |
| Bbm7 -> Eb7 | Setup (Major Key) | 1 |
| Eb7 -> Abmaj7 | Resolution (Major) | 1 |
| Gm7b5 -> C7#9 | Setup (Minor Key) | 1 |
Harmonic Highlights:
- The piece establishes a strong tonal center with five initial measures of Ebmaj7, delaying immediate harmonic movement.
- An altered secondary dominant, C7#9 (V7/ii), introduces chromatic tension, resolving effectively to the Fm7.
- Multiple repetitions of the ii-V progression (Fm7-Bb7) in Eb major form a core cyclical harmonic pattern.
- Includes a ii-V of V (Cm7-F7 to Bbmaj7) and a backdoor ii-V (Bbm7-Eb7), expanding the functional harmony.
Improvisation Focus: Harmonic outlining and voice leading over functional ii-V progressions.
Difficulty Rating: 3 (Intermediate) – The progression employs standard jazz functional harmony with common substitutions, requiring a solid grasp of voice leading over ii-V sequences.