This page lists of the various symbols in the Clefs group.
A clef (French: clef; “key”) is a musical symbol used to indicate the pitch of written notes. Placed on one of the lines at the beginning of the stave, it indicates the name and pitch of the notes on that line. This line serves as a reference point by which the names of the notes on any other line or space of the stave may be determined. Only one clef that references a note in a space rather than on a line has ever been used.
There are three types of clef used in modern music notation: F, C, and G. Each type of clef assigns a different reference note to the line on which it is placed.
Symbols in this group:
When the G-clef is placed on the second line of the stave, it is called the treble clef. This is the most common clef used today, and the only G-clef still in use. For this reason, the terms G-clef and treble clef are often seen as synonymous. The treble clef was historically used to mark a treble, or per-pubescent, voice part.