1\version "2.19.16"
2\header {
3  texidoc = "The two dots of a repeat sign should be symmetric
4to the staff centre and avoid staff lines even for exotic staves.
5Test set-global-staff size 10 (with layout-set-staff-size)."
6}
7
8#(set-global-staff-size 10)
9
10\score {
11  <<
12    \context Staff = "s1" \with {
13      \override StaffSymbol.staff-space = #0.6
14    } {
15      s1 \bar ":|."
16    }
17
18    \context Staff = "s2" \with {
19      \override StaffSymbol.line-positions = #'(-4 -2 0 2)
20      \override StaffSymbol.staff-space = #0.7
21    } {
22      s1 \bar ":|."
23    }
24
25    \context Staff = "s3" {
26      s1 \bar ":|."
27    }
28  >>
29}
30
31\score {
32  <<
33    \context Staff = "s1" \with {
34      \override StaffSymbol.staff-space = #0.6
35    } {
36      s1 \bar ":|."
37    }
38
39    \context Staff = "s2" \with {
40      \override StaffSymbol.line-positions = #'(-4 -2 0 2)
41      \override StaffSymbol.staff-space = #0.7
42    } {
43      s1 \bar ":|."
44    }
45
46    \context Staff = "s3" {
47      s1 \bar ":|."
48    }
49  >>
50
51  \layout {
52    #(layout-set-staff-size 30)
53  }
54}
55