Musical Definitions
- Treble or G Clef
See 'Signs on the staves.' - Signs On The Staves
There are four common signs used on the staves. They are the treble , or G clef, the bass clef , or F clef, the alto clef (the C CLEF on the middle line), and the tenor (the C CLEF on the second from top line). Each of these clefs were originally letters, indicating which note on the staff was that note.