LilyPond Internals Reference: 3.1.98 SpanBar

### 3.1.98 SpanBar

SpanBar objects are created by: Span_bar_engraver.

Standard settings:

> `allow-span-bar` (boolean):

>   `#t`

>   If false, no inter-staff bar line will be created below this bar line.

> `before-line-breaking` (boolean):

>   `ly:span-bar::before-line-breaking`

>   Dummy property, used to trigger a callback function.

> `break-align-symbol` (symbol):

>   `'staff-bar`

>   This key is used for aligning and spacing breakable items.

> `glyph-name` (string):

>   `ly:span-bar::calc-glyph-name`

>   The glyph name within the font.

> `hair-thickness` (number):

>   `1.6`

>   Thickness of the thin line in a bar line.

> `kern` (dimension, in staff space):

>   `3.0`

>   Amount of extra white space to add. For bar lines, this is the amount of space after a thick line.

> `layer` (integer):

>   `0`

>   An integer which determines the order of printing objects. Objects with the lowest value of layer are drawn first, then objects with progressively higher values are drawn, so objects with higher values overwrite objects with lower values. By default most objects are assigned a layer value of 1.

> `non-musical` (boolean):

>   `#t`

>   True if the grob belongs to a `NonMusicalPaperColumn`.

> `stencil` (stencil):

>   `ly:span-bar::print`

>   The symbol to print.

> `thick-thickness` (number):

>   `6.0`

>   Bar line thickness, measured in `line-thickness`.

> `thin-kern` (number):

>   `3.0`

>   The space after a hair-line in a bar line.

> `X-extent` (pair of numbers):

>   `ly:span-bar::width`

>   Hard coded extent in X direction.

> `Y-extent` (pair of numbers):

>   `ly:axis-group-interface::height`

>   Hard coded extent in Y direction.

This object supports the following interface(s): bar-line-interface, font-interface, grob-interface, item-interface and span-bar-interface.

#### Internals Reference