Music properties

X-offset (number)

Offset of resulting grob; only used for balloon texts.

Y-offset (number)

Offset of resulting grob; only used for balloon texts.

absolute-octave (integer)

The absolute octave for a octave check note.

alteration (number)

alteration for figured bass

articulation-type (string)

key for script definitions alist.

TODO: consider making type into symbol

articulations (list of music)

Articulation events specifically for this note.

associated-context (string)

Name of the Voice context associated with this \newaddlyrics section

augmented (boolean)

This figure is for an augmented figured bass (with +) sign.

bass (boolean)

Set if this note is a bass note in a chord

bracket-start (boolean)

start a bracket here. TODO: use SpanEvents?

bracket-stop (boolean)

stop a bracket here.

break-penalty (number)

Penalty for line break hint.

break-permission (symbol)

Whether to allow, forbid or force a line break.

cautionary (boolean)

If set, this alteration needs cautionary accidental

change-to-id (string)

name of the context to change to

change-to-type (symbol)

type of the context to change to.

compress-procedure (procedure)

compress this music expression. Argument 1: the music, arg 2: factor

context-id (string)

name of context

context-type (symbol)

type of context

create-new (boolean)

Create a fresh context.

delta-step (number)

How much should a fall change pitch?

denominator (integer)

denominator in a time signature

descend-only (boolean)

If set, this \context will only descend in the context tree.

digit (integer)

digit for fingering

diminished (boolean)

This bass figure should be slashed.

direction (direction)

Print this up or down?

drum-type (symbol)

Which percussion instrument to play this note on.

duration (duration)

Duration of this note/lyric.

element (music)

The single child of a Music_wrapper music object, or the body of a repeat.

elements (list of music)

A list of elements for sequential of simultaneous music, or the alternatives of repeated music.

elements-callback (procedure)

Return a list of children, for use by a sequential iterator. Takes a single Music parameter

error-found (boolean)

If true, a parsing error was found in this expression

expected-beam-count (integer)

Expected number of non-tremolo beams in a tremolo repeat

figure (integer)

a bass figure

force-accidental (boolean)

If set, a cautionary accidental should always be printed on this note

grob-property (symbol)

The symbol of the grob property to set.

grob-property-path (list)

A list of symbols, locating a nested grob property, e.g. (beamed-lengths details).

grob-value (any type)

The value of the grob property to set

input-tag (any type)

Arbitrary marker to relate input and output

inversion (boolean)

If set, this chord note is inverted.

iterator-ctor (procedure)

Function to construct music-event-iterator object for this Music

label (markup)

label of a mark.

last-pitch (pitch)

The last pitch after relativization.

length (moment)

The duration of this music

length-callback (procedure)

How to compute the duration of this music. This property can only be defined as initializer in define-music-types.scm.

metronome-count (number)

How many beats in a minute?

name (symbol)

Name of this music object

no-continuation (boolean)

If set, disallow continuation lines

numerator (integer)

numerator of a time signature

octavation (integer)

This pitch was octavated by how many octaves? For chord inversions, this is negative.

once (boolean)

Apply this operation only during one time step?

origin (input location)

where was this piece of music defined?

parenthesize (boolean)

Enclose resulting objects in parentheses?

part-combine-status (symbol)

Change to what kind of state? Options are solo1, solo2 and unisono

pitch (pitch)

the pitch of this note

pitch-alist (list)

list of pitches jointly forming the scale of a key signature

pop-first (boolean)

Do a revert before we try to do a override on some grob property.

prob-property (symbol)

The symbol of the prob property to set.

procedure (procedure)

The function to run with \applycontext. It must take a single argument, being the context.

property-operations (list)

Do these operations for instantiating the context.

quoted-context-id (string)

The id of the context to direct quotes to, eg., cue.

quoted-context-type (symbol)

The name of the context to direct quotes to, eg., Voice.

quoted-events (vector)

A vector of with moment/event-list entries.

quoted-music-name (string)

The name of the voice to quote.

quoted-transposition (pitch)

The pitch used for the quote, overriding \transposition

quoted-voice-direction (direction)

Should the quoted voice be up-stem or down-stem?

repeat-count (integer)

do a epeat how ofen?

span-direction (direction)

Does this start or stop a spanner?

span-type (string)

What kind of spanner should be created?

TODO: consider making type into symbol

split-list (list)

splitting moments for part combiner.

start-callback (procedure)

Function to compute the negative length of starting grace notes. This property can only be defined as initializer in define-music-types.scm.

string-number (integer)

The number of the string in a StringNumberEvent

symbol (symbol)

Grob name to perform an override/revert on.

tags (list)

List of symbols that for denoting extra details, e.g. \tag #'part ... could tag a piece of music as only being active in a part.

tempo-unit (duration)

The unit for the metronome count.

text (markup)

markup expression to be printed

text-type (symbol)

Particular type of text script (e.g. finger, dynamic).

to-relative-callback (procedure)

How to transform a piece of music to relative pitches

tonic (pitch)

Base of the scale

tremolo-type (integer)

speed of tremolo, e.g. 16 for c4:16

trill-pitch (pitch)

Pitch of other note of the trill.

tweaks (list)

An alist of properties to override in the backend for the grob made of this event.

type (symbol)

The type of this music object. Determines iteration in some cases.

types (list)

The types of this music object; determines by what engraver this music expression is processed.

untransposable (boolean)

If set, this music is not transposed.

value (any type)

Assignment value for a translation property

void (boolean)

If this property is #t, then the music expression is to be discarded by the toplevel music handler.

what (symbol)

What to change for auto-change. FIXME, naming