+
+\header{
+texidoc="
+Theads can be traced automagically when they switch staves by setting
+property @code{followVoice}.
+"
+}
+
+\version "1.7.6"
+% followVoice: connect note heads with line when thread switches staff
+
+fragment = \notes {
+ \context PianoStaff <
+ \property PianoStaff.followVoice = ##t
+ \property Voice.VoiceFollower \set #'type = #'dashed-line
+ \context Staff \context Voice {
+ c'1
+ \translator Staff=two
+ b2 a
+ }
+ \context Staff=two {\clef bass \skip 1*2}
+ >
+}
+
+\paper { linewidth = -1. }
+
+\score {
+ \notes\relative c \fragment
+ \paper { }
+}
+%% new-chords-done %%