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2.1.33 StaffGroup

Groups staves while adding a bracket on the left side, grouping the staves together. The bar lines of the contained staves are connected vertically. StaffGroup only consists of a collection of staves, with a bracket in front and spanning bar lines.

This context creates the following layout object(s): Arpeggio, InstrumentName, SpanBar, SpanBarStub, StaffGrouper, SystemStartBar, SystemStartBrace, SystemStartBracket, SystemStartSquare and VerticalAlignment.

This context sets the following properties:

• Set context property instrumentName to '().
• Set context property localAlterations to #f.
• Set context property localAlterations to '().
• Set context property shortInstrumentName to '().
• Set context property systemStartDelimiter to 'SystemStartBracket.
• Set context property topLevelAlignment to #f.
• Set grob property extra-spacing-width in DynamicText to #f.

This is not a ‘Bottom’ context; search for such a one will commence after creating an implicit context of type Staff.

Context StaffGroup can contain ChoirStaff, ChordNames, Devnull, DrumStaff, Dynamics, FiguredBass, FretBoards, GrandStaff, GregorianTranscriptionLyrics, GregorianTranscriptionStaff, KievanStaff, Lyrics, MensuralStaff, NoteNames, OneStaff, PetrucciStaff, PianoStaff, RhythmicStaff, Staff, StaffGroup, TabStaff, VaticanaLyrics and VaticanaStaff.

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

Instrument_name_engraver

Create a system start text for instrument or vocal names.

Properties (read)

currentCommandColumn (graphical (layout) object)

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

instrumentName (markup)

The name to print left of a staff. The instrumentName property labels the staff in the first system, and the shortInstrumentName property labels following lines.

shortInstrumentName (markup)

See instrumentName.

shortVocalName (markup)

Name of a vocal line, short version.

vocalName (markup)

Name of a vocal line.

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

Output_property_engraver

Apply a procedure to any grob acknowledged.

Music types accepted: apply-output-event

Span_arpeggio_engraver

Make arpeggios that span multiple staves.

Properties (read)

connectArpeggios (boolean)

If set, connect arpeggios across piano staff.

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

Span_bar_engraver

Make cross-staff bar lines: It catches all normal bar lines and draws a single span bar across them.

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

Span_bar_stub_engraver

Make stubs for span bars in all contexts that the span bars cross.

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

System_start_delimiter_engraver

Create a system start delimiter (i.e., a SystemStartBar, SystemStartBrace, SystemStartBracket or SystemStartSquare spanner).

Properties (read)

currentCommandColumn (graphical (layout) object)

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

systemStartDelimiter (symbol)

Which grob to make for the start of the system/staff? Set to SystemStartBrace, SystemStartBracket or SystemStartBar.

systemStartDelimiterHierarchy (pair)

A nested list, indicating the nesting of a start delimiters.

This engraver creates the following layout object(s): SystemStartBar, SystemStartBrace, SystemStartBracket and SystemStartSquare.

Vertical_align_engraver

Catch groups (staves, lyrics lines, etc.) and stack them vertically.

Properties (read)

alignAboveContext (string)

Where to insert newly created context in vertical alignment.

alignBelowContext (string)

Where to insert newly created context in vertical alignment.

hasAxisGroup (boolean)

True if the current context is contained in an axis group.

This engraver creates the following layout object(s): StaffGrouper and VerticalAlignment.