Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Emaj7 | 3 | 6.1% |
| F#maj7 | 2 | 4.1% |
| Amaj7 | 2 | 4.1% |
| B7/A | 2 | 4.1% |
| Cmaj7 | 2 | 4.1% |
| Em7 | 2 | 4.1% |
| Dmaj7 | 2 | 4.1% |
| C#m7b5 | 2 | 4.1% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| E7 -> Amaj7 | Resolution (Major) | 1 |
| F#m7b5 -> B7b9 | Setup (Minor Key) | 1 |
| B7b9 -> Em7 | Resolution (Minor) | 1 |
| Em7 -> A7sus | Setup (Major Key) | 1 |
| A7sus -> Dmaj7 | Resolution (Major) | 1 |
| F7b13 -> Bbm9 | Resolution (Minor) | 1 |
| A7b9#9 -> Dmaj7 | Resolution (Major) | 1 |
| Em7 -> A7 | Setup (Major Key) | 1 |
| C#m7b5 -> F#7b13 | Setup (Minor Key) | 1 |
| F#7b13 -> Bm7b5 | Resolution (Minor) | 1 |
| Bm7b5 -> E7b9 | Setup (Minor Key) | 1 |
| Dm7 -> G7 | Setup (Major Key) | 1 |
| Bm7 -> E7b9sus | Setup (Major Key) | 1 |
| C#m7b5 -> F#7alt | Setup (Minor Key) | 1 |
| E7alt -> Amaj7 | Resolution (Major) | 1 |
| B7 -> Emaj7 | Resolution (Major) | 1 |
🎼 Sheet Music
Find Lead Sheet on Sheet Music Direct (PDF)Harmonic Highlights
- The progression utilizes frequent side-slipping and tritone substitutions (G7#11 to F#maj7), creating a shimmering, unstable tonal environment.
- Rapid modulations traverse distant keys—moving from A major to C major and Bb minor—linked by deceptive ii-V sequences and non-functional dominants.
- The composition employs “backdoor” dominant resolutions (E7 to Amaj7) and chromatic pedal points (B7/A) to bridge disparate harmonic regions.
- Inner-voice cliché lines within minor chords (Bbm to Bbm/maj7) highlight Luiz Eça’s blend of bossa nova sensibilities with classical voice leading.
Improvisation Focus Melodic Minor and its modes (specifically Altered and Lydian Dominant) to navigate the dense, chromatic dominant substitutions.
Difficulty Rating 4 (Advanced). The rapid shifts between unrelated keys and the constant use of non-functional harmony require sophisticated ear training and high-level fretboard/keyboard fluency.