LilyPond Internals Reference: 2.2.108 Slur_engraver

### 2.2.108 Slur_engraver

Build slur grobs from slur events.

Music types accepted:

note-event and slur-event

Properties (read)

> `doubleSlurs` (boolean)

>   If set, two slurs are created for every slurred note, one above and one below the chord.

> `slurMelismaBusy` (boolean)

>   Signal if a slur is present.

This engraver creates the following layout object(s):

Slur.

`Slur_engraver` is part of the following context(s): CueVoice, DrumVoice, GregorianTranscriptionVoice, KievanVoice, NullVoice, PetrucciVoice, TabVoice and Voice.

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