Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Bbmaj7 | 9 | 23.7% |
| Cm7 | 6 | 15.8% |
| F7 | 6 | 15.8% |
| Gm7 | 4 | 10.5% |
| C7 | 2 | 5.3% |
| Am7b5 | 1 | 2.6% |
| D7#9 | 1 | 2.6% |
| Fm7 | 1 | 2.6% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Cm7 -> F7 | Setup (Major Key) | 6 |
| F7 -> Bbmaj7 | Resolution (Major) | 4 |
| Am7b5 -> D7#9 | Setup (Minor Key) | 1 |
| D7#9 -> Gm7 | Resolution (Minor) | 1 |
| Gm7 -> C7 | Setup (Major Key) | 1 |
| Fm7 -> Bb7 | Setup (Major Key) | 1 |
| D7 -> Gm7 | Resolution (Minor) | 1 |
| G7#9 -> Cm7 | Resolution (Minor) | 1 |
🎼 Sheet Music
Find Lead Sheet on Sheet Music Direct (PDF)Harmonic Highlights
- The progression relies on repetitive I-ii-V-I cycles (Bbmaj7, Cm7, F7) that reinforce the Bb Major tonality through standard functional cadences.
- A minor ii-V (Am7b5 to D7#9) facilitates a temporary tonicization of the relative minor, Gm7, providing a brief departure from the major key center.
- The C7 chord functions as a secondary dominant (V/V), creating a chromatic “cycle of fourths” movement that leads effectively back to the primary ii-V (Cm7-F7).
Improvisation Focus Bb Major Bebop scale (Bb, C, D, Eb, F, Gb, G, A) to emphasize chord tones while maintaining rhythmic flow over frequent turnarounds.
Difficulty Rating 2/5; the tune follows predictable diatonic patterns and standard functional movements, making it an ideal study for foundational jazz improvisation.