| Default | Scope | Available in |
| 5 | generation voice |
abcm2ps >= 7.2.1 abc2svg |
Set the number of lines of the staff of the current voice or set a map of the lines in the staff.
The map is a string composed of "|", "[", "." and "-" characters.
"|" is a normal staff line.
"[' is a thick line.
"." is always invisible.
"-" is invisible but may contain helper/ledger lines.
The first character represents the music line #1 (bottom line).
The last line must always be defined (the last character must not be "." except
when the staff has no drawn line).
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