LilyPond Internals Reference: 3.2.5 ambitus-interface

### 3.2.5 ambitus-interface

The line between note heads for a pitch range.

#### User settable properties:

> `gap` (dimension, in staff space)

>   Size of a gap in a variable symbol.

> `thickness` (number)

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

#### Internal properties:

> `note-heads` (array of grobs)

>   An array of note head grobs.

This grob interface is used in the following graphical object(s): Ambitus, AmbitusLine and AmbitusNoteHead.

#### Internals Reference