LilyPond Internals Reference: 1.1.46 OttavaMusic

### 1.1.46 OttavaMusic

Start or stop an ottava bracket.

Properties:

> `elements-callback` (procedure):

>   `make-ottava-set`

>   Return a list of children, for use by a sequential iterator. Takes a single music parameter.

> `iterator-ctor` (procedure):

>   `ly:sequential-iterator::constructor`

>   Function to construct a `music-event-iterator` object for this music.

> `name` (symbol):

>   `'OttavaMusic`

>   Name of this music object.

> `types` (list):

>   `'(general-music ottava-music)`

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

#### Internals Reference