#### Clef_engraver

Determine and set reference point for pitches

Properties (read)

`explicitClefVisibility` (procedure)
  break-visibility function for clef changes.
`clefOctavation` (integer)
  Add this much extra octavation. Values of 7 and -7 are common.
`middleCPosition` (number)
  Place of the middle C, measured in half staffspaces. Usually determined by looking at `clefPosition` and `clefGlyph`.
`clefGlyph` (string)
  Name of the symbol within the music font.
`clefPosition` (number)
  Where should the center of the clef symbol go, measured in half staff spaces from the center of the staff.

This engraver creates the following layout objects: Clef and OctavateEight.

`Clef_engraver` is part of contexts: DrumStaff, GregorianTranscriptionStaff, Staff, TabStaff and VaticanaStaff

Read comments on this page, or add one. This page is for LilyPond-2.2.2 (stable-branch).