Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Bmaj7 | 4 | 16.7% |
| C#m7 | 3 | 12.5% |
| F#7 | 3 | 12.5% |
| Em7 | 2 | 8.3% |
| A7 | 2 | 8.3% |
| Dmaj7 | 2 | 8.3% |
| C#m7/B | 2 | 8.3% |
| Bbm7 | 1 | 4.2% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| C#m7 -> F#7 | Setup (Major Key) | 3 |
| Em7 -> A7 | Setup (Major Key) | 2 |
| A7 -> Dmaj7 | Resolution (Major) | 2 |
| F#7 -> Bmaj7 | Resolution (Major) | 2 |
| Bbm7 -> Eb7 | Setup (Major Key) | 1 |
| Eb7 -> Abmaj7 | Resolution (Major) | 1 |
| Gm7 -> C7 | Setup (Major Key) | 1 |
| C7 -> Fmaj7 | Resolution (Major) | 1 |
Harmonic Highlights
- The progression cycles through four tonal centers (B, D, Ab, F) related by minor thirds, creating a symmetric diminished axis rather than standard functional dominant harmony.
- Rapid-fire ii-V-I cells facilitate these modulations every two measures, demanding immediate tonal reorientation from the soloist.
- The composition utilizes “Coltrane Changes” logic applied to a ballad tempo, emphasizing major 7th arrival points across distal keys.
- A final ii-V turnaround (C#m7 - F#7) anchors the piece back to the tonic center, providing a brief moment of traditional functional resolution.
Improvisation Focus Vertical “Change-Running” using Major Pentatonics or 1-2-3-5 digital patterns to clearly outline each shifting key center.
Difficulty Rating 4/5: The rapid shifts between unrelated keys require advanced harmonic visualization and precise voice leading even at slow tempos.