Lesson Scale Degree Theory
Degree V — Dom7 (Dominant)
Tension — wants to return to the tonic
Prove it — just do the practice exercise.
G7 Shell Voicing
- G
- R
- B
- 3
- F
- ♭7
The V degree (dominant) creates maximum tension:
• In C major: G7
• Function: Tension → resolution to I
• Contains the tritone (B–F), which resolves to C–E
Roman numeral: V = dominant 7th chord
The V → I cadence is the foundation of Western music. In jazz, almost always as ii – V – I.
• In C major: G7
• Function: Tension → resolution to I
• Contains the tritone (B–F), which resolves to C–E
Roman numeral: V = dominant 7th chord
The V → I cadence is the foundation of Western music. In jazz, almost always as ii – V – I.