What is a cadence?

Playing the note B on the piano. What can you say about the note? (Probably not much!) 

It is the effect of other notes on the B that gives it its particular meaning.

The relationship between notes might be consonant or dissonant. It might be part of a recognisable chord, or there may be notes we don’t expect in it. We might want a note to go somewhere, but the composer surprises us. These tensions are an important part of what makes music exciting.

The way in which these notes affect each other’s sound also has an effect on us, as the listeners.

A different first chord can affect the sound or implied meaning of the second in very different ways. 

This cadence was typically found in church music for many centuries. As such it was often known as an ‘Amen’ cadence.