### 3.2.68 measure-grouping-interface

This object indicates groups of beats. Valid choices for `style` are `bracket` and `triangle`.

#### User settable properties:

> `thickness` (number)

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

> `style` (symbol)

>   This setting determines in what style a grob is typeset. Valid choices depend on the `stencil` callback reading this property.

> `height` (dimension, in staff space)

>   Height of an object in `staff-space` units.

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

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