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2.1.24 NullVoice

For aligning lyrics without printing notes

This context also accepts commands for the following context(s): Staff and Voice.

This context creates the following layout object(s): Beam, NoteHead, Slur, Tie and TieColumn.

This context sets the following properties:

This is a ‘Bottom’ context; no contexts will be created implicitly from it.

This context cannot contain other contexts.

This context is built from the following engraver(s):

Beam_engraver

Handle Beam events by engraving beams. If omitted, then notes are printed with flags instead of beams.

Music types accepted: beam-event

Properties (read)

baseMoment (moment)

Smallest unit of time that will stand on its own as a subdivided section.

beamMelismaBusy (boolean)

Signal if a beam is present.

beatStructure (list)

List of baseMoments that are combined to make beats.

subdivideBeams (boolean)

If set, multiple beams will be subdivided at baseMoment positions by only drawing one beam over the beat.

This engraver creates the following layout object(s): Beam.

Grob_pq_engraver

Administrate when certain grobs (e.g., note heads) stop playing.

Properties (read)

busyGrobs (list)

A queue of (end-moment . grob) cons cells. This is for internal (C++) use only. This property contains the grobs which are still busy (e.g., note heads, spanners, etc.).

Properties (write)

busyGrobs (list)

A queue of (end-moment . grob) cons cells. This is for internal (C++) use only. This property contains the grobs which are still busy (e.g., note heads, spanners, etc.).

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.

Pitch_squash_engraver

Set the vertical position of note heads to squashedPosition, if that property is set. This can be used to make a single-line staff demonstrating the rhythm of a melody.

Properties (read)

squashedPosition (integer)

Vertical position of squashing for Pitch_squash_engraver.

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.

Tie_engraver

Generate ties between note heads of equal pitch.

Music types accepted: tie-event

Properties (read)

skipTypesetting (boolean)

If true, no typesetting is done, speeding up the interpretation phase. Useful for debugging large scores.

tieWaitForNote (boolean)

If true, tied notes do not have to follow each other directly. This can be used for writing out arpeggios.

Properties (write)

tieMelismaBusy (boolean)

Signal whether a tie is present.

This engraver creates the following layout object(s): Tie and TieColumn.

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LilyPond – Internals Reference v2.24.4 (stable-branch).