clef
US /klef/
UK /klef/

1.
clave
a symbol at the beginning of the staff indicating the pitch of the notes on the staff
:
•
The treble clef is used for higher-pitched instruments.
A clave de sol é usada para instrumentos de tom mais alto.
•
He learned to read music by understanding the bass clef.
Ele aprendeu a ler música entendendo a clave de fá.