### 3.2.48 horizontal-bracket-interface

A horizontal bracket encompassing notes.

#### 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)`.

> `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.

> `connect-to-neighbor` (pair)

>   Pair of booleans, indicating whether this grob looks as a continued break.

#### Internal properties:

> `columns` (array of grobs)

>   An array of grobs, typically containing `PaperColumn` or `NoteColumn` objects.

This grob interface is used in the following graphical object(s): HorizontalBracket, OttavaBracket and VoltaBracket.

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