Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Bb7 | 6 | 15.0% |
| Fm7 | 5 | 12.5% |
| Ebmaj7 | 4 | 10.0% |
| Ab7 | 4 | 10.0% |
| Fm7b5 | 3 | 7.5% |
| Ebm7 | 2 | 5.0% |
| Db7#11 | 2 | 5.0% |
| Gm7b5 | 2 | 5.0% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Fm7b5 -> Bb7 | Setup (Minor Key) | 3 |
| Fm7 -> Bb7 | Setup (Major Key) | 3 |
| Ebmaj7 -> Ab7 | Setup (Major Key) | 2 |
| Ab7 -> Ebm7 | Resolution (Minor) | 2 |
| Ebm7 -> Ab7 | Setup (Major Key) | 2 |
| Gm7b5 -> C7b9 | Setup (Minor Key) | 2 |
| C7b9 -> Fm7b5 | Resolution (Minor) | 2 |
| Cm7 -> F7 | Setup (Major Key) | 2 |
| Bb7 -> Fm7b5 | Resolution (Minor) | 1 |
| Bb7 -> Ebmaj7 | Resolution (Major) | 1 |
| Gm7 -> C7 | Setup (Major Key) | 1 |
| C7 -> Fm7 | Resolution (Minor) | 1 |
Harmonic Highlights:
- Alternating major I and backdoor/minor ii-V progressions (
Ebmaj7 - Ab7 - Ebm7 - Ab7). - Prominent use of the
Db7#11chord (bII7 Lydian dominant) providing a colorful tritone substitution before tonicEbmaj7. - Extended sequences of ii-V-I progressions, often with borrowed minor qualities (
Gm7b5 - C7b9leading toFm7b5 - Bb7). - Strategic use of diminished chords (
B07) for chromatic voice leading and dominant substitution.
Improvisation Focus: Melodic Minor Scale applications over various dominant and minor chords.
Difficulty Rating: 4 (Advanced Intermediate) This standard demands fluent navigation of numerous ii-V-I progressions, including those with altered dominant and minor qualities, along with tritone substitutions.