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2.1.10 FiguredBass

The context in which BassFigure grobs are created from input entered in \figuremode mode.

This context creates the following layout object(s): BassFigure, BassFigureAlignment, BassFigureBracket, BassFigureContinuation, BassFigureLine, StaffSpacing and VerticalAxisGroup.

This context sets the following properties:

• Set grob property nonstaff-nonstaff-spacing.padding in VerticalAxisGroup to 0.5.
• Set grob property nonstaff-relatedstaff-spacing.padding in VerticalAxisGroup to 0.5.
• Set grob property remove-empty in VerticalAxisGroup to #t.
• Set grob property remove-first in VerticalAxisGroup to #t.
• Set grob property staff-affinity in VerticalAxisGroup to 1.

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):

Axis_group_engraver

Group all objects created in this context in a VerticalAxisGroup spanner.

Properties (read)

currentCommandColumn (graphical (layout) object)

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

hasAxisGroup (boolean)

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

keepAliveInterfaces (list)

A list of symbols, signifying grob interfaces that are worth keeping a staff with remove-empty set around for.

Properties (write)

hasAxisGroup (boolean)

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

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

Figured_bass_engraver

Make figured bass numbers.

Music types accepted: bass-figure-event and rest-event

Properties (read)

figuredBassAlterationDirection (direction)

Where to put alterations relative to the main figure.

figuredBassCenterContinuations (boolean)

Whether to vertically center pairs of extender lines. This does not work with three or more lines.

figuredBassFormatter (procedure)

A routine generating a markup for a bass figure.

ignoreFiguredBassRest (boolean)

Don’t swallow rest events.

implicitBassFigures (list)

A list of bass figures that are not printed as numbers, but only as extender lines.

useBassFigureExtenders (boolean)

Whether to use extender lines for repeated bass figures.

This engraver creates the following layout object(s): BassFigure, BassFigureAlignment, BassFigureBracket, BassFigureContinuation and BassFigureLine.

Separating_line_group_engraver

Generate objects for computing spacing parameters.

Properties (read)

createSpacing (boolean)

Create StaffSpacing objects? Should be set for staves.

Properties (write)

hasStaffSpacing (boolean)

True if currentCommandColumn contains items that will affect spacing.

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