LilyPond program-reference: 2.2.77 Percent_repeat_engraver

### 2.2.77 Percent_repeat_engraver

Make whole bar and double bar repeats.

Music types accepted:

percent-event

Properties (read)

> `countPercentRepeats` (boolean)

>   If set, produce counters for percent repeats.

> `currentCommandColumn` (layout object)

>   Grob that is X-parent to all current breakable (clef, key signature, etc.) items.

> `measureLength` (moment)

>   Length of one measure in the current time signature.

> `repeatCountVisibility` (procedure)

>   A procedure taking as arguments an integer and context, returning whether the corresponding percent repeat number should be printed when `countPercentRepeats` is set.

Properties (write)

> `forbidBreak` (boolean)

>   If set to `##t`, prevent a line break at this point.

This engraver creates the following layout object(s):

DoublePercentRepeat, DoublePercentRepeatCounter, PercentRepeat and PercentRepeatCounter.

`Percent_repeat_engraver` is part of the following context(s): CueVoice, DrumVoice, GregorianTranscriptionVoice, MensuralVoice, TabVoice, VaticanaVoice and Voice.

#### Internals Reference