3.2.93 span-bar-interface
A bar line that is spanned between other barlines. This interface is used for bar lines that connect different staves.
Internal properties:
elements
(unknown)A list of grobs; the type is depending on the grob where this is set in.
glyph-name
(string)The glyph name within the font.
This grob interface is used in the following graphical object(s): SpanBar.