LilyPond program-reference: 3.1.67 NoteCollision

### 3.1.67 NoteCollision

NoteCollision objects are created by: Collision_engraver.

Standard settings:

> `axes` (list):

>   `'(0 1)`

>   List of axis numbers. In the case of alignment grobs, this should contain only one number.

> `X-extent` (pair of numbers):

>   `ly:axis-group-interface::width`

>   Hard coded extent in X direction.

> `Y-extent` (pair of numbers):

>   `ly:axis-group-interface::height`

>   Hard coded extent in Y direction.

> `prefer-dotted-right` (boolean):

>   `#t`

>   For note collisions, prefer to shift dotted up-note to the right, rather than shifting just the dot.

This object supports the following interface(s): note-collision-interface, item-interface, axis-group-interface and grob-interface.

#### Internals Reference