### 3.2.30 enclosing-bracket-interface

Brackets alongside bass figures.

#### User settable properties:

> `bracket-flare` (pair of numbers)

>   A pair of numbers specifying how much edges of brackets should slant outward. Value `0.0` means straight edges.

> `edge-height` (pair)

>   A pair of numbers specifying the heights of the vertical edges: `(left-height . right-height)`.

> `padding` (dimension, in staff space)

>   Add this much extra space between objects that are next to each other.

> `shorten-pair` (pair of numbers)

>   The lengths to shorten a text-spanner on both sides, for example a pedal bracket. Positive values shorten the text-spanner, while negative values lengthen it.

> `thickness` (number)

>   Line thickness, generally measured in `line-thickness`.

#### Internal properties:

> `elements` (array of grobs)

>   An array of grobs; the type is depending on the grob where this is set in.

This grob interface is used in the following graphical object(s): BassFigureBracket.

#### Internals Reference v2.18.2 (稳定分支).