### 2.2.76 Note_heads_engraver

Generate note heads.

Music types accepted:

note-event

Properties (read)

> `middleCPosition` (number)

>   The place of the middle C, measured in half staff-spaces. Usually determined by looking at `middleCClefPosition` and `middleCOffset`.

> `staffLineLayoutFunction` (procedure)

>   Layout of staff lines, `traditional`, or `semitone`.

This engraver creates the following layout object(s):

NoteHead.

`Note_heads_engraver` is part of the following context(s): CueVoice, GregorianTranscriptionVoice, KievanVoice, MensuralVoice, NullVoice, PetrucciVoice, VaticanaVoice and Voice.

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