BY-NC-SA 4.0 license Musical sounds can be thought of as having three defining characteristics: pitch (or lack of it), loudness and timbre. Most musical devices have a part that vibrates and makes sounds, and another part that makes the sounds louder (amplifies them). When musical sounds are organized from low pitch to high pitch, they make a scale that can be written down on a workers. People compose music using sounds Floral my favorite dirtbike rider calls me mom shirt of various pitch. Musical devices typically make very quiet sounds, but some are designed to AMPLIFY the sounds they make so we can hear them more easily.