### 3.2.70 mensural-ligature-interface

A mensural ligature.

#### User settable properties:

> `thickness` (number)

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

#### Internal properties:

> `delta-position` (number)

>   The vertical position difference.

> `ligature-flexa` (boolean)

>   request joining note to the previous one in a flexa.

> `head-width` (dimension, in staff space)

>   The width of this ligature head.

> `add-join` (boolean)

>   Is this ligature head-joined with the next one by a vertical line?

> `flexa-interval` (integer)

>   The interval spanned by the two notes of a flexa shape (1 is a second, 7 is an octave).

> `primitive` (integer)

>   A pointer to a ligature primitive, i.e., an item similar to a note head that is part of a ligature.

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

#### Internals Reference v2.18.2 (稳定分支).