LilyPond Internals Reference: 1.1.45 NoteGroupingEvent

### 1.1.45 NoteGroupingEvent

Start or stop grouping brackets.

Event classes: music-event, note-grouping-event and StreamEvent.

Accepted by: Horizontal_bracket_engraver.

Properties:

> `name` (symbol):

>   `'NoteGroupingEvent`

>   Name of this music object.

> `types` (list):

>   `'(general-music event note-grouping-event)`

>   The types of this music object; determines by what engraver this music expression is processed.

#### Internals Reference