Editing Staff (music) (section)

==Staff positions==
[[Image:Staff lines and spaces SVG.svg|400px|right|thumb|Staff, with staff positions indicated]]
The vertical position of the notehead on the staff indicates which note to play: higher-pitched notes are marked higher on the staff. The notehead can be placed with its center intersecting a line (''on a line'') or in between the lines touching the lines above and below (''in a space''). Notes outside the range of the staff are placed on or between [[ledger line]]s—lines the width of the note they need to hold—added above or below the staff.

Which staff positions represent which [[Note (music)|notes]] is determined by a [[clef]] placed at the beginning of the staff. The clef identifies a particular line as a specific note, and all other notes are determined relative to that line. For example, the [[treble clef]] puts the G above [[middle C]] on the second line. The [[Interval (music)|interval]] between adjacent staff positions is one [[steps and skips|step]] in the [[diatonic scale]]. Once fixed by a clef, the notes represented by the positions on the staff can be modified by the [[key signature]] or [[Accidental (music)|accidentals]] on individual notes. A clefless staff may be used to represent a set of [[Percussion instrument|percussion]] sounds; each line typically represents a different instrument.