LilyPond Internals Reference: 1.1.69 PropertySet

### 1.1.69 `PropertySet`

Set a context property.

Syntax: `\set context.prop = scheme-val`

Properties:

`iterator-ctor` (procedure):

  `ly:property-iterator::constructor`

  Function to construct a `music-event-iterator` object for this music.

`name` (symbol):

  `'PropertySet`

  Name of this music object.

`types` (list):

      '(layout-instruction-event)

  The types of this music object; determines by what engraver this music expression is processed.

`untransposable` (boolean):

  `#t`

  If set, this music is not transposed.

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