What is a symbols is a quarter rest?

A quarter rest is a musical symbol that indicates a silence lasting for one quarter of a whole note's duration, which is typically one beat in common time. It looks like a zigzag or a squiggly line, and it's used in sheet music to show where musicians should pause or not play for that specific duration. Quarter rests help create rhythm and structure in a piece of music, allowing for moments of silence that enhance the overall composition.