The most common rest is the quarter rest, which is represented by a square. A quarter rest indicates that the musician should stop playing for one beat. Other common rests include the half rest (two beats), the whole rest (four beats), and the eighth rest (half a beat).
Rests can also be combined to create longer silences. For example, a quarter rest and a half rest together would indicate that the musician should stop playing for three beats.
Rests are an important part of music, as they help to create rhythm and shape the overall structure of a piece.