Bases: abjad.core.interface._Interface, abjad.core.grobhandler._GrobHandler
Manage barlines.
abjad> t = Note(0, (1, 4))
abjad> t.barline
<BarLineInterface>
Override LilyPond BarLine grob.
abjad> t.barline.color = 'red'
abjad> print t.format
\once \override BarLine #'color = #red
c'4
Read / write LilyPond barline string.
Default value: None.
All values: LilyPond barline string, None.
abjad> t = Note(0, (1, 4))
abjad> t.barline.kind = '|.'
abjad> t.barline.kind
'|.'
abjad> print t.format
c'4
\bar "|."