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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:

• Set grob-property font-shape in TextScript to 'italic.
• Set grob-property nonstaff-relatedstaff-spacing in VerticalAxisGroup to '((basic-distance . 5) (padding . 0.5)).
• Set grob-property staff-affinity in VerticalAxisGroup to 0.
• Set grob-property X-offset in DynamicText to #<simple-closure (#<primitive-generic +> #<simple-closure (#<primitive-procedure ly:self-alignment-interface::centered-on-note-columns>) > #<simple-closure (#<primitive-procedure ly:self-alignment-interface::x-aligned-on-self>) >) >.
• Set grob-property Y-offset in DynamicLineSpanner to 0.
• Set translator property pedalSustainStrings to '(Ped. *Ped. *).
• Set translator property pedalUnaCordaStrings to '(una corda tre corde).

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.

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.

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 bar-line-interface.

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.

New_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.

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.

Tweak_engraver

Read the tweaks property from the originating event, and set properties.

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