"C clef." YourDictionary, n.d. Web. 14 January 2019. <https://www.yourdictionary.com/c-clef>.
C clef. (n.d.). Retrieved January 14th, 2019, from https://www.yourdictionary.com/c-clef
A symbol indicating which line of a staff represents the pitch of middle C. On the bottom line it becomes the soprano clef, on the middle line the alto clef, and on the third line above the bottom the tenor clef.