input/tricks/follow-thread.ly

   1
   2 \header{
   3 texidoc="
   4 Theads can be traced automagically when they switch staffs by setting
   5 property @code{followVoice}.
   6 ";
   7 }
   8
   9 \version "1.3.139"
  10 % followVoice: connect note heads with line when thread switches staff
  11
  12 fragment = \notes {
  13   \context PianoStaff <
  14     \property PianoStaff.followVoice = ##t
  15     \property Voice.VoiceFollower \set #'type = #'dashed-line
  16     \context Staff \context Voice {
  17       c'1
  18       \translator Staff=two
  19       b2 a
  20     }
  21     \context Staff=two {\clef bass; \skip 1*2;}
  22   >
  23 }
  24
  25 \paper { linewidth = -1.; }
  26
  27 \score {
  28   \notes\relative c \fragment
  29   \paper { }
  30 }