G clef

US /ˈdʒiː klɛf/
UK /ˈdʒiː klɛf/
"G clef" picture
1.

ト音記号

a clef that establishes G above middle C as the second line from the bottom of the staff, used for the treble and other higher-pitched instruments

:
The violin part is written in the G clef.
バイオリンのパートはト音記号で書かれています。
Most vocal music for sopranos and tenors uses the G clef.
ソプラノとテノールのほとんどの声楽はト音記号を使用します。