Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Fm7 | 9 | 16.7% |
| Bb7b9 | 6 | 11.1% |
| Ebmaj7 | 5 | 9.3% |
| Gm7 | 5 | 9.3% |
| B9#11 | 4 | 7.4% |
| Gb07 | 4 | 7.4% |
| Eb6 | 4 | 7.4% |
| Bb7sus | 2 | 3.7% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Bb7b9 -> Ebmaj7 | Resolution (Major) | 3 |
| Fm7 -> Bb7b9 | Setup (Major Key) | 2 |
| Fm7 -> Bb7#5 | Setup (Major Key) | 1 |
| Bb7#5 -> Ebmaj7 | Resolution (Major) | 1 |
| Gmaj7 -> D7/A | Setup (Major Key) | 1 |
| Fm7 -> Bb7 | Setup (Major Key) | 1 |
| Abmaj7 -> Db7 | Setup (Major Key) | 1 |
Harmonic Highlights:
- Extensive tonicization of the IV chord (Eb major) via ii-V-I progressions (Fm7-Bb7-Ebmaj7), making Eb a prominent secondary tonal center.
- Frequent deployment of tritone substitutions, exemplified by B9#11 (for F7) leading to Bb7, and Gb7b5 (for C7) resolving to Fm7, introducing chromatic tension.
- Sophisticated chromatic voice-leading is evident through chords like Gb07, which serves as a passing diminished between Gm7 and Fm7, enhancing internal melodic movement.
Improvisation Focus: Altered Scale
Difficulty Rating: 4 (Advanced). The frequent tonicizations of Eb, coupled with extensive use of altered dominants, tritone substitutions, and chromatic diminished chords, demands a sophisticated understanding of harmony and rapid tonal adjustments.