2.8.3 Graphical notation

Rhythmic items may be continued by a duration line, which gets represented by a DurationLine grob. Possible styles are 'beam, 'line, 'dashed-line, 'dotted-line, 'zigzag, 'trill and 'none. The duration line may end with a hook (beam-style only) or an arrow.

\layout {
  \context {
    \Voice
    \consists "Duration_line_engraver"
    \omit Stem
    \omit Flag
    \omit Beam
    \override NoteHead.duration-log = 2
  }
}

{
  a'1\- s2 r
  \once \override DurationLine.style = #'line
  a'1\- s2 r
  \once \override DurationLine.style = #'dashed-line
  \once \override DurationLine.dash-period = 2
  a'1\- s2 r
  \once \override DurationLine.style = #'dotted-line
  \once \override DurationLine.dash-period = 1
  \once \override DurationLine.bound-details.right.padding = 1
  a'1\- s2 r
  \once \override DurationLine.thickness = 2
  \once \override DurationLine.style = #'zigzag
  a'1\- s2 r
  \once \override DurationLine.style = #'trill
  a'1\- s2 r
  \once \override DurationLine.style = #'none
  a'1\- s2 r
  \once \override DurationLine.bound-details.right.end-style = #'arrow
  a'1\- s2 r
  \override DurationLine.bound-details.right.end-style = #'hook
  a'1\- s2 r
  \override DurationLine.details.hook-direction = #DOWN
  a'1\- s2 r
  \bar "|."
}

[image of music]

Known issues and warnings

If a DurationLine grob runs to the very end of a score, ending items are not printed for technical reasons. A workaround would be:

\layout {
  \context {
    \Voice
    \consists "Duration_line_engraver"
    \omit Stem
    \omit Flag
    \omit Beam
    \override NoteHead.duration-log = 2
  }
}

lastEndStyle =
#(define-music-function (end-style)(symbol?)
#{
  \override DurationLine.after-line-breaking =
    #(lambda (grob)
      (let* ((orig (ly:grob-original grob))
             (siblings (if (ly:grob? orig)
                           (ly:spanner-broken-into orig) '()))
             (last-grob (if (pair? siblings) (last siblings) #f)))
        (if last-grob
            (ly:grob-set-nested-property!
              last-grob
              '(bound-details right-broken end-style) end-style))))
#})

{
  \once \override DurationLine.bound-details.right.end-style = #'arrow
  \lastEndStyle #'arrow
  a'1\-
  \bar "|."
}

[image of music]


LilyPond — Notation Reference v2.22.1 (stable-branch).