Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Dm7 | 5 | 11.9% |
| Db7 | 5 | 11.9% |
| Cm7 | 5 | 11.9% |
| B7#11 | 5 | 11.9% |
| Ab7 | 3 | 7.1% |
| Fm7 | 2 | 4.8% |
| Bb7 | 2 | 4.8% |
| Ebmaj7 | 2 | 4.8% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Fm7 -> Bb7 | Setup (Major Key) | 2 |
| Bb7 -> Ebmaj7 | Resolution (Major) | 2 |
| Ebmaj7 -> Ab7 | Setup (Major Key) | 2 |
| Ebm7 -> Ab7 | Setup (Major Key) | 1 |
| Ab7 -> Dbmaj7 | Resolution (Major) | 1 |
| C#m7 -> F#7 | Setup (Major Key) | 1 |
| F#7 -> Bmaj7 | Resolution (Major) | 1 |
| Cm7b5 -> F7 | Setup (Minor Key) | 1 |
🎼 Sheet Music
Find Lead Sheet on Sheet Music Direct (PDF)Harmonic Highlights
- The progression utilizes a series of descending chromatic ii-V sequences (Dm7 - Db7 - Cm7 - B7), where Db7 and B7 function as tritone substitutions (subV7) for G7 and F7 respectively.
- The B section shifts to a cycle of fourths (Fm7 - Bb7 - Ebmaj7 - Ab7), functioning as a vi - II - V - I turnaround in the key of Ab major.
- Harmonic tension is generated through “constant structure” motion, where minor 7th and dominant 7th voicings move in parallel half-steps against a static melodic pedal point.
- The resolution to Bb6 (the II chord) acts as a temporary landing point before recycling through the subdominant-focused bridge.
Improvisation Focus
- Guide Tone Navigation: Emphasizing the 3rds and 7ths to outline the rapid chromatic shifts while maintaining the rhythmic “Samba” feel.
Difficulty Rating
- 3/5: The repetitive melody is deceptive, as the soloist must navigate fast-moving tritone substitutions and constant key center shifts within a steady bossa nova groove.