C clef

A clef marking that may sit anywhere on the five line staff, and whichever line its center points to is middle C (c1). This is also called the movable clef because it can signify a number of different clefs. The most common c clefs are the tenor and alto clef, where middle C is on the fourth line and the third line, respectively. Two rarely used c clefs are the mezzo-soprano clef and soprano clef, where middle C is on the second line and the first line, respectively.