The difference between treble clef and bass clef. The treble clef and bass clef are musical symbols used to indicate the pitch range of written notes in sheet music. The treble clef, also known as the G clef, is used to notate higher-pitched notes. It is called the G clef because its symbol loops around the second line of the staff, indicating that this line represents the note G above middle C. This clef is used for sopranos, altos and sometimes tenors. On the other hand, the bass clef, also kn