LilyPond Internals Reference: 1.1.57 NoteGroupingEvent

### 1.1.57 `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):

      '(post-event event note-grouping-event)

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

#### LilyPond – Internals Reference v2.24.4 (stable-branch).