Internal backend properties
accidental-grob
(layout object)- Accidental for this note.
accidental-grobs
(list)- Alist with (NOTENAME . GROBLIST) entries
add-cauda
(boolean)- does this flexa require an additional cauda on the left side?
add-join
(boolean)- is this ligature head joined with the next one by a vertical line?
add-stem
(boolean)- is this ligature head a virga and therefore needs an additional stem on the right side?
adjacent-hairpins
(unknown)- List of directly neighboring hairpins
all-elements
(unknown)- list of all grobs in this line. Its
function is to protect objects from being garbage collected.
arpeggio
(layout object)- pointer to arpeggio object.
ascendens
(boolean)- is this neume of an ascending type?
auctum
(boolean)- is this neume liquescentically augmented?
axis-group-parent-X
(layout object)- Containing X axis group
axis-group-parent-Y
(layout object)- Containing Y axis group
bars
(unknown)- list of bar line pointers.
beam
(layout object)- pointer to the beam, if applicable.
begin-of-line-visible
(boolean)- Used for marking ChordNames that should only show changes.
bounded-by-me
(unknown)- list of spanners that have this
column as start/begin point. Only columns that have grobs or act as
bounds are spaced.
bracket
(layout object)- the bracket for a number.
cached-pure-extents
(vector)- Used by a VerticalAxisGroup to cache the Y-extents of different column ranges.
cause
(any type)- Any kind of causation objects (i.e. music, or perhaps translator) that was the cause for this grob.
cavum
(boolean)- is this neume outlined?
circled-tip
(boolean)- Put a circle at start/end of hairpins (al/del niente)
columns
(unknown)- list of grobs, typically containing
paper-columns or note-column objects.
common-refpoint-of-elements
(layout object)- Caches the common_refpoint_of_array of the elements grob-set
conditional-elements
(unknown)- Internal use only
context-info
(integer)- Within a ligature, the final glyph or shape of a head may be affected by the left and/or right neighbour head. context-info holds for each head such information about the left and right neighbour, encoded as a bit mask.
delta-position
(number)- vertical position difference
deminutum
(boolean)- is this neume deminished?
descendens
(boolean)- is this neume of a descendent type?
details
(list)- alist of parameters for detailed grob behavior.
more information on the allowed parameters can be found by inspecting
lily/slur-scoring.cc, lily/beam-quanting.cc, and
lily/tie-formatting-problem.cc. Setting debug-tie-scoring
,
debug-beam-scoring
or debug-slur-scoring
also provides
useful clues.
direction-source
(layout object)- in case side-relative-direction is
set, which grob to get the direction from .
dot
(layout object)- reference to Dots object.
dots
(unknown)- multiple Dots objects.
elements
(unknown)- list of grobs, type depending on the Grob
where this is set in.
encompass-objects
(unknown)- Objects that a slur should avoid
in addition to notes and stems.
figures
(unknown)- Figured bass objects for continuation line.
flexa-height
(dimension, in staff space)- height of a flexa shape in a ligature grob in staff_space.
flexa-width
(dimension, in staff space)- width of a flexa shape in a ligature grob in staff_space.
font
(font metric)- Cached font metric object
glyph-name
(string)- a name of character within font.
grace-spacing
(layout object)- a run of grace notes.
head-width
(dimension, in staff space)- width of this ligature head
heads
(unknown)- List of note heads.
ideal-distances
(list)- (obj . (dist . strength)) pairs.
important-column-ranks
(vector)- Cache of columns that contain items-worth-living.
inclinatum
(boolean)- is this neume an inclinatum?
interfaces
(list)- list of symbols indicating the interfaces supported by this object. Is initialized from the
meta
field.
items-worth-living
(unknown)- A list of interesting items. If
empty in a particular staff, then that staff is erased.
join-heads
(boolean)- Whether to join the note heads of an ambitus grob with a vertical line.
join-right-amount
(number)
least-squares-dy
(number)- ideal beam slope, without damping.
left-items
(unknown)
left-neighbors
(unknown)- List of
spacing-wish grobs that are close to the current column.
The closest spacing-wishes determine the actual distances between the
columns.
linea
(boolean)- attach vertical lines to this neume?
meta
(list)- Contains meta information. It is an alist with the
entries
name
and interfaces
.
minimum-distances
(list)- list of rods, that have the format (obj . dist).
note-columns
(pair)- list of NoteColumn grobs.
note-head
(layout object)- A single note head
note-heads
(unknown)- List of note head grobs
oriscus
(boolean)- is this neume an oriscus?
pedal-text
(layout object)- Pointer to the text of a mixed-style piano pedal.
pes-or-flexa
(boolean)- shall this neume be joined with the previous head?
positioning-done
(boolean)- Used to signal that a positioning element
did its job. This ensures that a positioning is only done once.
prefix-set
(number)- a bit mask that holds all Gregorian head prefixes, such as
\virga
or \quilisma
primitive
(integer)- Pointer to a ligature primitive, i.e. an item similar to a note head that is part of a ligature.
pure-Y-extent
(pair of numbers)- The estimated height of a system
pure-relevant-elements
(unknown)- The subset of elements that are relevant for finding the pure-Y-extent.
quant-score
(string)- Beam quanting score – can be stored for
debugging
quantize-position
(boolean)- If set, a vertical alignment is aligned to be within staff spaces.
quantized-positions
(pair of numbers)- Beam positions after quanting.
quilisma
(boolean)- is this neume a quilisma?
rest
(layout object)- the staff symbol grob that we're in.
rest-collision
(layout object)- rest collision that a rest is in.
rests
(unknown)- A list of rest objects.
right-items
(unknown)
right-neighbors
(unknown)- see left-neighbors
script-stencil
(pair)- Pair (
type
. arg
), which
acts as an index for looking up a Stencil object.
separation-item
(layout object)- A separation item.
shorten
(dimension, in staff space)- The amount of space that a
stem. Internally used to distribute beam shortening over stems.
side-support-elements
(unknown)- the support, a list of grobs.
slur
(layout object)- A pointer to a slur object
spaceable-staves
(unknown)- Objects to be spaced during page layout.
spacing
(layout object)- the spacing spanner governing this section.
spacing-wishes
(unknown)- List of note spacing or staff spacing objects.
staff-symbol
(layout object)- the staff symbol grob that we're in.
stem
(layout object)- pointer to Stem object.
stem-info
(pair)- caching of stem parameters
stems
(unknown)- list of stem objects, corresponding to the notes that the arpeggio has to be before.
stropha
(boolean)- Is this neume a stropha?
tie
(layout object)
tremolo-flag
(layout object)- The tremolo object on a stem.
tuplet-number
(layout object)- the number for a bracket.
tuplets
(unknown)- list of smaller tuplet brackets
use-breve-rest
(boolean)- Use breve rests for measures longer
than a whole rest.
virga
(boolean)- Is this neume a virga?
x-offset
(dimension, in staff space)- Extra horizontal offset for ligature heads.