Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Cm7 | 8 | 23.5% |
| Bb6 | 6 | 17.6% |
| F7 | 5 | 14.7% |
| Bbmaj7 | 4 | 11.8% |
| G7 | 2 | 5.9% |
| Eb6 | 2 | 5.9% |
| Dm7 | 1 | 2.9% |
| F7#5 | 1 | 2.9% |
Key Patterns Detected
| Pattern | Function | Frequency |
|---|---|---|
| Cm7 -> F7 | Setup (Major Key) | 5 |
| G7 -> Cm7 | Resolution (Minor) | 2 |
| Dm7 -> G7 | Setup (Major Key) | 1 |
| F7 -> Cm7 | Resolution (Minor) | 1 |
| F7#5 -> Bbmaj7 | Resolution (Major) | 1 |
| Fm7 -> Bb7 | Setup (Major Key) | 1 |
| Gm7 -> C7 | Setup (Major Key) | 1 |
🎼 Sheet Music
Find Lead Sheet on Sheet Music Direct (PDF)Harmonic Highlights
- Utilizes a classic I - iii - VI7 - ii - V7 progression (Bb - Dm7 - G7 - Cm7 - F7), where the G7 functions as a secondary dominant ($V^7/ii$) to create forward momentum.
- Employs a standard tonicization of the subdominant (IV) through a ii-V of Eb (Fm7 - Bb7), a common architectural feature in early 20th-century swing standards.
- The use of the $F7^{#5}$ dominant alteration provides chromatic voice leading ($C#$ to $D$) to resolve smoothly back to the Bb tonic.
- The harmonic rhythm is steady, primarily moving every two bars or every bar during turnarounds, typical of the 32-bar ABAC song form.
Improvisation Focus Bb Major Bebop scale and chord tone arpeggiation to navigate the frequent secondary dominants.
Difficulty Rating 2/5 — The clear, diatonic structure and predictable secondary dominants make it an accessible entry point for learning swing-era improvisation.