What is a cadence?

A cadence is made up of two chords which signal the end of a musical phrase. There are four different kinds:The Perfect Cadence is really recognisable because we hear it all the time! It is a chord V followed by a chord I and sounds like a really obvious end of a musical idea.The Imperfect Cadence, on the other hand, sounds unfinished. It ends on a chord V and makes you feel like there is more to come.The Plagal Cadence is found in a lot of church music. It is a chord IV followed by a chord I.The Interrupted Cadence sound really surprising. It starts in the same way as a Perfect cadence, but doesn't end on a chord I. It usually ends on a minor chord.