What is a cadence?

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

  • Now add a G and D in the right hand and a G in the bass, turning the lonely B into a G major chord.

  • Think about the effect that these extra notes have on each other. The other notes – G and D – have given the B a particular identity and context – being the ‘third’, or the middle note, in a G major triad.

  • Now play the B again, but transform it into E minor, B major, G sharp minor, E major... or indeed into an atonal cluster. When affected by each of these sets of notes, the B could become almost anything!

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.

  • Now play the G major chord again, and follow it with C major (a perfect cadence).

  • Think about how linking the two chords affects the meaning. Suddenly the G major chord’s ‘place’ is clear: it is the last step before we arrive ‘home’ at the end of a piece.

  • Play the perfect cadence a few times. What does this make you think of? (the end of a piece, or returning home).

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.

  • For instance, instead of starting on the chord of G, put an F major chord in front of the C major chord (a plagal cadence). This sounds final but not quite as final as the perfect cadence.

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