CADENCE GUIDELINES

cadence type

harmony

melody

rhythm (norm, not rule)

perfect authentic (PAC)

V or V7 I

2-1 or 7-8

I on strong beat

imperfect authentic (IAC)

V or V7 I

3 or 5 on top for I

I on strong beat

half (HC)

end on V (not V7 !)

5 or 7 or 2

V on strong beat

deceptive (DC)

V or V7 vi or IV6

2-1; 7-8 (rare)

vi or IV6 on strong beat 

plagal (PC)

IV I

1-1; 4-3; 6-5

I on strong beat

 

Copyright © 2001 Irene Girton