The staff height in units
Add a given Graphical Slur to the staffline
If the musicXML sets different numbers of stafflines, we need to have different offsets to accomodate this - primarily for the sky and bottom lines and cursor.
Find the GraphicalStaffEntry closest to the given xPosition.
True iff StaffLine belongs to an Instrument with more than one Staff.
Generated using TypeDoc
A StaffLine contains the [[Measure]]s in one line of the music sheet (one instrument, one line, until a line break)