The fifth tone ( dominant) of the C major scale. In solfeggio, it is called Sol. The frequencies of the audible pitches of G are notated below. See also [Eng.] G; [Fr.] Sol; [Ger.] G; [It.] Sol; [Sp.] Sol.The note that indicates the treble clef. The line of the pitch of G is indicated in the treble clef by the lower curl in the treble clef symbol, which itself is a stylized G. See G Clefthe fifth degree of the c major scale