Breath mark

A breath mark or luftpause is a symbol used in musical notation. It directs the performer of the music passage to take a breath (for wind instruments and vocalists) or to make a slight pause (for non-wind instruments). This pause is normally intended to affect the duration of the preceding note and not the tempo. It is usually placed above the staff and at the ends of phrases. Its function is analogous to the comma in several written languages. Indeed, the two symbols look identical.