Changing the clef glyph, its position, or the ottavation does not
change the position of subsequent notes on the staff. To get key
signatures on their correct staff lines, middleCClefPosition
must also be specified, with positive or negative values moving
middle C up or down respectively, relative to the staff's
center line.
For example, \clef "treble_8" is equivalent to setting
the clefGlyph, clefPosition (the vertical position
of the clef itself on the staff), middleCPosition, and
clefTransposition. Note that when any of these properties
(except middleCPosition) are changed a new clef symbol is
printed.
The following examples show the possibilities when setting these properties manually. On the first line, the manual changes preserve the standard relative positioning of clefs and notes, whereas on the second line, they do not.