4 \header { texidoc
="@cindex Staff Lines
5 Set staff symbol property. "
9 upper
= \notes\relative c'' {
13 lower
= \notes\relative c {
18 \context PianoStaff
<<
23 \property Staff
.StaffSymbol
\set #'line-count
= #4 } <<
28 \paper { raggedright
=##t
}