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2.1.4 ChordNames

Typesets chord names.

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

This context creates the following layout object(s): ChordName, StaffSpacing and VerticalAxisGroup.

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):

Alteration_glyph_engraver

Set the glyph-name-alist of all grobs having the accidental-switch-interface to the value of the context’s alterationGlyphs property, when defined.

Properties (read)

alterationGlyphs (list)

Alist mapping alterations to accidental glyphs. Alterations are given as exact numbers, e.g., -1/2 for flat. This applies to all grobs that can print accidentals.

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.

Chord_name_engraver

Read currentChordText to create chord names.

Properties (read)

chordChanges (boolean)

Only show changes in chords scheme?

currentChordCause (stream event)

Event cause of the chord that should be created in this time step (if any).

currentChordText (markup)

In contexts printing chord names, this is at any point of time the markup that will be put in the chord name.

lastChord (markup)

Last chord, used for detecting chord changes.

Properties (write)

lastChord (markup)

Last chord, used for detecting chord changes.

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

Current_chord_text_engraver

Catch note and rest events and generate the appropriate chord text using chordNameFunction. Actually creating a chord name grob is left to other engravers.

Music types accepted: general-rest-event and note-event

Properties (read)

chordNameExceptions (list)

An alist of chord exceptions. Contains (chord . markup) entries.

chordNameFunction (procedure)

The function that converts lists of pitches to chord names.

chordNoteNamer (procedure)

A function that converts from a pitch object to a text markup. Used for single pitches.

chordRootNamer (procedure)

A function that converts from a pitch object to a text markup. Used for chords.

majorSevenSymbol (markup)

How should the major 7th be formatted in a chord name?

noChordSymbol (markup)

Markup to be displayed for rests in a ChordNames context.

Properties (write)

currentChordCause (stream event)

Event cause of the chord that should be created in this time step (if any).

currentChordText (markup)

In contexts printing chord names, this is at any point of time the markup that will be put in the chord name.

Output_property_engraver

Apply a procedure to any grob acknowledged.

Music types accepted: apply-output-event

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.

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