The term dynamics refers to the volume at which music is played or sung. If all music were played at the same volume it would lack expression and become boring. Therefore it is essential to be able to sing at a variety of dynamic levels, ranging from very soft to very loud. Here are some of the most commonly used markings for dynamics:
Two other symbols used to indicate dynamics are the crescendo (meaning a gradual increase in volume) and the diminuendo (a gradual decrease in volume).
This exercise will help you gain control over dynamics in your singing. The aim is to apply the crescendo and diminuendo to a single note while maintaining an even tone. Listen to the recording if you are not sure how this should sound.