1 #(ly:set-option 'old-relative)
4 texidoc = "Span bars draw only in between staff bar lines, so setting those to transparent shows bar lines between systems only.
9 \notes \relative c' \new StaffGroup <<
10 \new Staff { a1 a1 a1}
11 \new Lyrics \lyrics <<
15 \new Staff { f1 f1 f1}
20 BarLine \override #'transparent = ##t