1\header {
2
3  texidoc = "The vertical positions of ledger lines may be customised
4by setting the @code{ledger-positions} property of the StaffSymbol.
5The given pattern is repeated.  Bracketed groups are always shown together:
6either all or none are shown.  Ledger lines can be set to appear sooner or
7later by setting the @code{ledger-extra} property."
8}
9
10\version "2.19.21"
11
12\new Staff \relative {
13  \override Staff.StaffSymbol.line-positions = #'(-5 -2 -1 2 5 6)
14  \override Staff.StaffSymbol.ledger-positions = #'(-5 (-2 -1) 2)
15  \override Staff.StaffSymbol.ledger-extra = #1
16  g,4 c e b' c'' e g
17}
18