Notes are written on a five-line staff. A clef orients the lines to a reference point. For example, the G clef, when placed on a five-line staff, becomes the treble clef, the most well known clef. In treble clef, the notes on the lines are $\text{E}$–$\text{G}$–$\text{B}$–$\text{D}$–$\text{F}$ from lowest to highest, often remembered through the traditional mnenomic “Every Good Boy Does Fine.” The spaces are $\text{F}$–$\text{A}$–$\text{C}$–$\text{E}$ from lowest to highest. Staves (the plural of “staff” in musical terminology is “staves”) are extended by the ledger lines.