LilyPond Internals Reference: 1.1.66 RelativeOctaveCheck

### 1.1.66 RelativeOctaveCheck

Check if a pitch is in the correct octave.

Properties:

> `name` (symbol):

>   `'RelativeOctaveCheck`

>   Name of this music object.

> `to-relative-callback` (procedure):

>   `ly:relative-octave-check::relative-callback`

>   How to transform a piece of music to relative pitches.

> `types` (list):

>       '(relative-octave-check)

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

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