Eighth note

An eighth note with stem extending up, an eighth note with stem extending down, and an eighth rest.

Four eighth notes beamed together.

The eighth note (also called a quaver) is a note used in musical notation. It is ¹⁄₈ the duration of a whole note (semibreve), which is where it gets its name. In the [math]\displaystyle{ \frac 4 4 }[/math] time signature it has a length of ¹⁄₂ of a beat.