Translation guide
The G clef is a musical symbol indicating the pitch of notes on a staff. In Japanese, it is most commonly referred to as ト音記号.
G clef
The standard musical symbol that fixes the G above middle C on the second line of the staff.
The standard Japanese term for the G clef, used in all contexts from music education to professional settings.
The G clef is placed on the second line of the staff.
The right-hand part of the piano is usually written in the G clef.
Literally 'high-pitch part symbol', this term is sometimes used in formal or educational contexts, but ト音記号 is more common.
The treble clef is written at the beginning of the score.
When referring specifically to the G clef used for high-pitched instruments or voices, often called the treble clef in English.
When talking about music, ト音記号 is the go-to word. Even if you hear 高音部記号, it means the same thing, but ト音記号 is more natural in everyday speech.
I'm practicing reading treble clef sheet music.