Clef and G clef

Clef noun - A musical notation written on a staff indicating the pitch of the notes following it.

G clef and clef are semantically related. In some cases you can replace phrase "G clef" with "Clef", this terms are similar.

G clef noun - A clef that puts the G above middle C on the second line of a staff.

Clef and G clef are semantically related. You can use "Clef" instead a noun phrase "G clef".