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2.1.7 Dynamics

Holds a single line of dynamics, which will be centered between the staves surrounding this context.

This context also accepts commands for the following context(s):

Voice.

This context creates the following layout object(s):

BarLine, DynamicLineSpanner, DynamicText, DynamicTextSpanner, Hairpin, PianoPedalBracket, Script, SostenutoPedal, SustainPedal, TextScript, TextSpanner, UnaCordaPedal and VerticalAxisGroup.

This context sets the following properties:

This context is a ‘bottom’ context; it 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 (clef, key signature, etc.) items.

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.

Bar_engraver

Create barlines. This engraver is controlled through the whichBar property. If it has no bar line to create, it will forbid a linebreak at this point. This engraver is required to trigger the creation of clefs at the start of systems.

Properties (read)

whichBar (string)

This property is read to determine what type of bar line to create.

Example: 

\set Staff.whichBar = ".|:"

This will create a start-repeat bar in this staff only. Valid values are described in ‘scm/bar-line.scm’.

Properties (write)

forbidBreak (boolean)

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

This engraver creates the following layout object(s):

BarLine.

Dynamic_align_engraver

Align hairpins and dynamic texts on a horizontal line.

Properties (read)

currentMusicalColumn (graphical (layout) object)

Grob that is X-parent to all non-breakable items (note heads, lyrics, etc.).

This engraver creates the following layout object(s):

DynamicLineSpanner.

Dynamic_engraver

Create hairpins, dynamic texts and dynamic text spanners.

Music types accepted:

absolute-dynamic-event, break-span-event and span-dynamic-event

Properties (read)

crescendoSpanner (symbol)

The type of spanner to be used for crescendi. Available values are ‘hairpin’ and ‘text’. If unset, a hairpin crescendo is used.

crescendoText (markup)

The text to print at start of non-hairpin crescendo, i.e., ‘cresc.’.

currentMusicalColumn (graphical (layout) object)

Grob that is X-parent to all non-breakable items (note heads, lyrics, etc.).

decrescendoSpanner (symbol)

The type of spanner to be used for decrescendi. Available values are ‘hairpin’ and ‘text’. If unset, a hairpin decrescendo is used.

decrescendoText (markup)

The text to print at start of non-hairpin decrescendo, i.e., ‘dim.’.

This engraver creates the following layout object(s):

DynamicText, DynamicTextSpanner and Hairpin.

Font_size_engraver

Put fontSize into font-size grob property.

Properties (read)

fontSize (number)

The relative size of all grobs in a context.

Output_property_engraver

Apply a procedure to any grob acknowledged.

Music types accepted:

apply-output-event

Piano_pedal_engraver

Engrave piano pedal symbols and brackets.

Music types accepted:

sostenuto-event, sustain-event and una-corda-event

Properties (read)

currentCommandColumn (graphical (layout) object)

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

pedalSostenutoStrings (list)

See pedalSustainStrings.

pedalSostenutoStyle (symbol)

See pedalSustainStyle.

pedalSustainStrings (list)

A list of strings to print for sustain-pedal. Format is (up updown down), where each of the three is the string to print when this is done with the pedal.

pedalSustainStyle (symbol)

A symbol that indicates how to print sustain pedals: text, bracket or mixed (both).

pedalUnaCordaStrings (list)

See pedalSustainStrings.

pedalUnaCordaStyle (symbol)

See pedalSustainStyle.

This engraver creates the following layout object(s):

PianoPedalBracket, SostenutoPedal, SustainPedal and UnaCordaPedal.

Script_engraver

Handle note scripted articulations.

Music types accepted:

articulation-event

Properties (read)

scriptDefinitions (list)

The description of scripts. This is used by the Script_engraver for typesetting note-superscripts and subscripts. See ‘scm/script.scm’ for more information.

This engraver creates the following layout object(s):

Script.

Text_engraver

Create text scripts.

Music types accepted:

text-script-event

This engraver creates the following layout object(s):

TextScript.

Text_spanner_engraver

Create text spanner from an event.

Music types accepted:

text-span-event

Properties (read)

currentMusicalColumn (graphical (layout) object)

Grob that is X-parent to all non-breakable items (note heads, lyrics, etc.).

This engraver creates the following layout object(s):

TextSpanner.

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Internals Reference v2.18.2 (stable-branch).