LilyPond Internals Reference: 3.2.111 spacing-options-interface

### 3.2.111 spacing-options-interface

Supports setting of spacing variables.

#### User settable properties:

> `shortest-duration-space` (number)

>   Start with this multiple of `spacing-increment` space for the shortest duration. See also spacing-spanner-interface.

> `spacing-increment` (dimension, in staff space)

>   The unit of length for note-spacing. Typically, the width of a note head. See also spacing-spanner-interface.

This grob interface is used in the following graphical object(s): GraceSpacing and SpacingSpanner.

#### Internals Reference v2.22.2 (stable-branch).