clef

US /klef/
UK /klef/
"clef" picture
1.

音部記号

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.
ト音記号は高音の楽器に使われます。
He learned to read music by understanding the bass clef.
彼はヘ音記号を理解することで楽譜を読むことを学んだ。