### 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.

> `length-fraction` (number)

>   Multiplier for lengths. Used for determining ledger lines and stem lengths.

> `maximum-gap` (number)

>   Maximum value allowed for `gap` property.

> `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 v2.18.2 (稳定分支).