LilyPond Internals Reference: 3.2.35 custos-interface

### 3.2.35 `custos-interface`

A custos object. `style` can have four valid values: `mensural`, `vaticana`, `medicaea`, and `hufnagel`. `mensural` is the default style.

#### User settable properties:

`neutral-direction` (direction)

  Which direction to take in the center of the staff.

`neutral-position` (number)

  Position (in half staff spaces) where to flip the direction of custos stem.

`style` (symbol)

  This setting determines in what style a grob is typeset. Valid choices depend on the `stencil` callback reading this property.

This grob interface is used in the following graphical object(s): `Custos`.

#### LilyPond – Internals Reference v2.24.4 (stable-branch).