Chord Distribution Analysis
| Chord Symbol | Count | Frequency |
|---|---|---|
| Bb7 | 12 | 44.4% |
| Eb7 | 10 | 37.0% |
| C7 | 3 | 11.1% |
| D7 | 1 | 3.7% |
| G7 | 1 | 3.7% |
No obvious ii-V patterns detected.
Harmonic Highlights:
- Pervasive Dominant Tonic (I7): The consistent use of Eb7 (I7) as the tonic chord, rather than Ebmaj7, defines the piece’s blues/funk character within the Eb key center.
- V7-I7 Ostinato: The main vamp cycles between Bb7 (V7) and Eb7 (I7), forming a simple, groove-driving two-chord foundation.
- Descending Dominant Chain: A non-diatonic section features a D7-G7-C7 sequence, functioning as a series of temporary V7 chords (V7/G, V7/C, V7/F) before resolving back to Bb7.
- Prolonged Dominant Tension: The C7 chord is extended before the return to Bb7, building anticipation through a bluesy dominant prolongation.
Improvisation Focus: Mixolydian scale for each dominant 7th chord.
Difficulty Rating: 3 (Intermediate). The blend of simple dominant vamps with a non-diatonic descending dominant sequence requires foundational chord-scale knowledge and adaptability.