Noun
a movable clef that puts middle C on one of the lines of a staff
Source: WordNetC-clef
About this sound Play ( help · info ) Where the C-clef is placed on the fourth line of the stave, it is called the tenor clef. Source: Internet
About this sound Play ( help · info ) Where the C-clef is placed on the first line of the stave, it is called the soprano clef. Source: Internet
About this sound Play ( help · info ) Where the C-clef is placed on the second line of the stave, it is called the mezzo-soprano clef. Source: Internet
Baritone clef † Baritone clef Diatonic scale on C, baritone C-clef. Source: Internet
Six of these, however, are redundant clefs (for example, a G-clef on the third line would be the same as a C-clef on the first line). Source: Internet