Modulation
Documentation Template:
|  Original Key:  | X X X X X X X    | 
|---|---|
|  Common Element :  |  .......................x | 
|  Destination Key:  | . . . . . . . . . . . . X X X X X X X  | 
Is there a common element between original and destination keys?
No: Direct (Abrupt, truck driver's gear change) Modulation
Yes:
Is the common element a chord or a tone?
Tone: Common (Pivot) Tone Modulation
Chord: The common chord is shared in both keys
- As is: Common (Pivot) Chord Modulation
- Chromatically/Enharmonically: Chromatic (Enharmonic) Modulation