Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Fmaj7 | 5 | 16.7% |
| Gm7 | 5 | 16.7% |
| G7#11 | 4 | 13.3% |
| Gb7#11 | 2 | 6.7% |
| F#maj7 | 2 | 6.7% |
| B7 | 2 | 6.7% |
| F#m7 | 2 | 6.7% |
| D7 | 2 | 6.7% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| F#maj7 -> B7 | Setup (Major Key) | 1 |
| B7 -> F#m7 | Resolution (Minor) | 1 |
| D7 -> Gm7 | Resolution (Minor) | 1 |
| Am7 -> D7b5b9 | Setup (Major Key) | 1 |
| D7b5b9 -> Gm7 | Resolution (Minor) | 1 |
| Gm7 -> C7b5b9 | Setup (Major Key) | 1 |
| C7b5b9 -> Fmaj7 | Resolution (Major) | 1 |
Harmonic Highlights
- Frequent use of dominant 7th chords with #11 extensions (G7#11, Gb7#11), characteristic of bossa nova’s sophisticated harmonic palette.
- Prominent chromatic root movement, such as Gm7 - Gb7#11 - F#maj7, creating a smooth descending voice leading effect.
- Rapid and distant modulations (e.g., F#maj7 and B7) that introduce unexpected tonal centers far from the D minor key.
- Application of an altered dominant (D7b5b9) for heightened tension before resolving, leading to the iv chord (Gm7).
Improvisation Focus Lydian Dominant scale, frequently employed over the #11 dominant chords, is essential.
Difficulty Rating 4 (Advanced Intermediate) - The rapid, distant modulations and prevalent altered dominants demand a sophisticated understanding of complex harmonic substitutions and modal playing.