How does the position of a note on a staff show whether its pitch is high or low?

In musical notation, the staff functions as a visual graph where the vertical axis represents pitch. The staff consists of five parallel horizontal lines with spaces between them; notes placed higher on this vertical grid correspond to higher pitches, while notes placed lower correspond to lower pitches.123

The specific pitch of a note is determined by its position on these lines and spaces in relation to a clef. A clef is placed at the beginning of the staff to assign a definite pitch to a specific line, providing a reference point for all other notes. If a note falls above or below the five-line staff, it is placed on or between short, added lines known as ledger lines, allowing the system to represent pitches beyond the standard range. By arranging notes horizontally, the staff also visually maps the rise and fall of a melody over time.4153