1 ;;;; translator-property-description.scm -- part of backend documentation
3 ;;;; source file of the GNU LilyPond music typesetter
5 ;;;; (c) 1998--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
6 ;;;; Jan Nieuwenhuizen <janneke@gnu.org>
9 (define-public all-translation-properties '())
11 (define (translator-property-description symbol type? description)
12 (if (not (equal? #f (object-property symbol 'translation-doc)))
14 (ly:warn (string-append "Redefining " (symbol->string symbol) "\n"))
18 (set-object-property! symbol 'translation-type? type?)
19 (set-object-property! symbol 'translation-doc description)
20 (set! all-translation-properties (cons symbol all-translation-properties))
24 (define-public all-user-translation-properties
27 (apply translator-property-description x))
29 (aDueText ,string? "Text to print at a unisono passage.")
30 (alignBassFigureAccidentals ,boolean?
31 "If true, then the accidentals are aligned in bass figure context.")
33 (allowBeamBreak ,boolean? "If true allow line breaks for beams over bar lines.")
34 (associatedVoice ,string? "Name of the
35 @code{Voice} that has the melody for this @code{Lyrics} line.")
36 (autoBeamSettings ,list? "Specifies
37 when automatically generated beams should begin and end.
38 See @usermanref{Setting automatic beam behavior} for more information.
40 (autoAccidentals ,list? "List of
41 different ways to typeset an accidental.
43 For determining when to print an accidental, several different rules
44 are tried. The rule that gives the highest number of accidentals is
45 used. Each rule consists of
50 In which context is the rule applied. For example, if
51 @var{context} is @internalsref{Score} then all staves share
52 accidentals, and if @var{context} is @internalsref{Staff} then all
53 voices in the same staff share accidentals, but staves do not.
56 Whether the accidental changes all octaves or only the current
57 octave. Valid choices are
61 This is the default algorithm. Accidentals are typeset if the note changes
62 the accidental of that note in that octave. Accidentals lasts to the end of the measure
63 and then as many measures as specified in the value. I.e. 1 means to the end
64 of next measure, -1 means to the end of previous measure (that is: no duration at all), etc. #t means forever.
66 Accidentals are typeset if the note is different from
67 the previous note on the same pitch in any octave. The value has same meaning as in
73 Over how many bar lines the accidental lasts.
74 If @var{laziness} is @code{-1} then the accidental is forget
75 immediately, and if @var{laziness} is @code{#t} then the accidental
79 (autoBeaming ,boolean? "If set to true then beams are generated
82 (autoCautionaries ,list? "List similar to
83 @code{autoAccidentals}, but it controls cautionary accidentals rather than
84 normal ones. Both lists are tried, and the one giving the most accidentals
85 wins. In case of draw, a normal accidental is typeset.
87 (automaticBars ,boolean? " If set to true then bar lines will not be
88 printed automatically; they must be explicitly created with
89 @code{\\bar} command. Unlike the @code{\\cadenza} keyword, measures
90 are still counted. Bar generation will resume according to that count
91 if this property is unset.
94 (barAlways ,boolean? "If set to true a bar line is drawn after each
97 (barCheckSynchronize ,boolean? "If true then reset @code{measurePosition}
98 when finding a barcheck.")
100 (barNumberVisibility ,procedure? "Procedure that takes an int and
101 returns whether the corresponding bar number should be printed")
102 (bassFigureFormatFunction ,procedure? "Procedure that is called
103 to produce the formatting for a @code{BassFigure} grob. It takes a
104 list of @code{BassFigureEvent}s, a context, and the grob to format.")
105 (beatLength ,ly:moment? "The length of one beat in this time signature.")
107 "List of beatgroups, e.g., in 5/8 time @code{'(2
112 (middleCPosition ,number? "Place of the middle C, measured in half
113 staffspaces. Usually determined by looking at @code{clefPosition} and
116 (chordNameFunction ,procedure?
117 "The function that converts lists of pitches to chord names.")
118 (chordNoteNamer ,procedure?
119 "Function that converts from a pitch object to a text markup. Used for single pitches.")
120 (chordRootNamer ,procedure?
121 "Function that converts from a pitch object to a text markup. Used for chords.")
122 (chordNameExceptions ,list?
123 "Alist of chord exceptions.
124 Contains (@var{chord} . @var{markup}) entries.")
125 (chordNameExceptionsFull ,list?
126 "Alist of chord exceptions.
127 Contains (@var{chord} . @var{markup}) entries.")
128 (chordNameExceptionsPartial
130 "Alist of partial chord exceptions. Contains (@var{chord} . (@var{prefix-markup} @var{suffix-markup})) entries.")
132 (chordNameSeparator ,markup?
133 "The markup object used to separate
134 parts of a chord name.")
135 (chordChanges ,boolean? "Only show changes in chords scheme?")
136 (clefGlyph ,string? "Name of the symbol within the music font.")
137 (clefOctavation ,integer? "Add
138 this much extra octavation. Values of 7 and -7 are common.")
140 (clefPosition ,number? "Where should the center of the clef
141 symbol go, measured in half staff spaces from the center of the staff.")
143 (connectArpeggios ,boolean? " If set, connect arpeggios across
145 (createKeyOnClefChange ,boolean? "Print a key signature whenever the clef is changed.")
146 (crescendoText ,markup? "Text to print at start of non-hairpin crescendo, i.e.: @samp{cresc.}")
147 (crescendoSpanner ,symbol? "Type of spanner to be used for crescendi.
148 One of: @samp{hairpin}, @samp{line}, @samp{dashed-line},
149 @samp{dotted-line}. If unset, hairpin type is used.")
150 (decrescendoText ,markup? "Text to print at start of non-hairpin decrescendo, i.e.: @samp{dim.}")
152 (drumPitchTable ,hash-table? "A table mapping percussion
153 instruments (symbols) to pitches.")
155 (drumStyleTable ,hash-table? "A hash table containing mapping
156 drums to layout settings. Predefined values: @samp{drums-style},
157 @samp{timbales-style}, @samp{congas-style}, @samp{bongos-style} and
158 @samp{percussion-style}.
160 The layout style is a hash table, containing the drum-pitches (e.g. the
161 symbol @samp{hihat}) as key, and a list (@var{notehead-style}
162 @var{script} @var{vertical-position}) as values.
164 (currentBarNumber ,integer? "Contains the current barnumber. This property is incremented at
167 (defaultBarType ,string? "Sets the default type of bar line.
168 See @code{whichBar} for information on available bar types.
170 This variable is read by @internalsref{Timing_engraver} at
171 @internalsref{Score} level.
174 (decrescendoSpanner ,symbol? "See @code{crescendoSpanner}.")
176 (explicitClefVisibility ,procedure? "@samp{break-visibility} function for clef changes.")
178 (explicitKeySignatureVisibility ,procedure?
179 "@samp{break-visibility} function for explicit key
180 changes. @samp{\\override} of @samp{#'break-visibility} will set the
181 visibility for normal (i.e. at the start of the line) key signatures.")
183 (extraNatural ,boolean? "Whether to typeset an
184 extra natural sign before accidentals changing from a non-natural to
185 another non-natural.")
187 (extraVerticalExtent ,number-pair?
188 "extra vertical extent, same format as @var{minimumVerticalExtent}")
191 (followVoice ,boolean? "if set, note heads are tracked across staff
192 switches by a thin line")
195 "The relative size of all grobs in a context. ")
197 (fingeringOrientations ,list?
198 "List of symbols, containing
199 @samp{left}, @samp{right}, @samp{up} and/or @samp{down}. This list
200 determines where fingerings are put relative to the chord being
203 (forceClef ,boolean? "Show clef symbol, even if it has not
204 changed. Only active for the first clef after the property is set, not
205 for the full staff.")
207 (highStringOne ,boolean? "Whether the 1st string is the string with
208 highest pitch on the instrument. This used by the automatic string
209 selector for tab notation.")
211 (ignoreMelismata ,boolean? "Ignore melismata for this @internalsref{Lyrics} line.")
212 (instr ,markup? "See @code{instrument}")
214 (instrument ,markup? "The name to print left of a staff. The
215 @code{instrument} property labels the staff in the first system, and
216 the @code{instr} property labels following lines.")
217 (instrumentEqualizer ,procedure? "
218 Function taking a string (instrument name), and returning a (@var{min} . @var{max}) pair of numbers for the loudness range of the instrument.
220 (instrumentTransposition ,ly:pitch? "Define the transposition of the instrument. This is used to transpose the MIDI output, and @code{\\quote}s.")
222 (keyAccidentalOrder ,list? " Alist that defines in what order
223 alterations should be printed. The format is (@var{name}
224 . @var{alter}), where @var{name} is from 0 .. 6 and @var{alter} from -1, 1.
227 (keySignature ,list? "The current key signature. This is an alist
228 containing (@var{name} . @var{alter}) or ((@var{octave} . @var{name}) . @var{alter}).
229 where @var{name} is from 0.. 6 and
230 @var{alter} from -4 (double flat) to 4 (double sharp).
233 (majorSevenSymbol ,markup? "How should
234 the major 7th be formatted in a chord name?")
235 (markFormatter ,procedure? "Procedure
236 taking as arguments context and rehearsal mark. It should return the
237 formatted mark as a markup object.")
239 (measureLength ,ly:moment? "Length of one
240 measure in the current time signature.")
242 (measurePosition ,ly:moment? "How much of the current measure
243 have we had. This can be set manually to create incomplete
246 (melismaBusyProperties ,list? "List of properties (symbols) to
247 determine whether a melisma is playing. Setting this property will
248 influence how lyrics are aligned to notes. For example, if set to
249 @code{#'(melismaBusy beamMelismaBusy)}, only manual melismata and
250 manual beams are considered. Possible values include
251 @code{melismaBusy}, @code{slurMelismaBusy}, @code{tieMelismaBusy}, and
252 @code{beamMelismaBusy}")
255 (metronomeMarkFormatter ,procedure? "How to produce a metronome
256 markup. Called with 2 arguments, event and context.")
257 (midiInstrument ,string? "Name of the MIDI instrument to use ")
258 (midiMinimumVolume ,number? "Sets the minimum loudness for MIDI. Ranges from 0 to 1.")
259 (midiMaximumVolume ,number? "Analogous to @code{midiMinimumVolume}.")
260 (minimumFret ,number? "The tablature auto string-selecting mechanism
261 selects the highest string with a fret at least @var{minimumFret}")
262 (minimumVerticalExtent ,number-pair? "minimum vertical extent, same
263 format as @var{verticalExtent}")
264 (ottavation ,string? "If set, the text for an ottava spanner. Changing
265 this creates a new text spanner. ")
266 (pedalSustainStrings ,list? "List of string to print for
267 sustain-pedal. Format is (@var{up} @var{updown} @var{down}), where
268 each of the three is the string to print when this is done with the
270 (pedalUnaCordaStrings ,list? "See @code{pedalSustainStrings}.")
271 (pedalSostenutoStrings ,list? "See @code{pedalSustainStrings}.")
272 (pedalSustainStyle ,symbol? "A symbol that indicates how to print
273 sustain pedals: @code{text}, @code{bracket} or @code{mixed} (both).")
274 (pedalUnaCordaStyle ,symbol? "see @code{pedalSustainStyle}.")
275 (pedalSostenutoStyle ,symbol? "see @code{pedalSustainStyle}.")
276 (printKeyCancellation ,boolean? "Print restoration alterations before a key signature change. ")
277 (printOctaveNames ,boolean? "Print octave marks for the NoteNames context.")
278 (recordEventSequence ,procedure? "When
279 @internalsref{Recording_group_engraver} is in this context, then upon
280 termination of the context, this function is called with current
281 context and a list of music objects. The list of contains entries
282 with start times, music objects and whether they are processed in this
286 (rehearsalMark ,integer? "The last rehearsal mark printed.")
287 (repeatCommands ,list? "This property is read to find any command of the form @code{(volta . @var{x})}, where @var{x} is a string or @code{#f}")
288 (restNumberThreshold ,number?
289 "If a multimeasure rest takes less
290 than this number of measures, no number is printed. ")
292 (skipBars ,boolean? "If set to true, then
293 skip the empty bars that are produced by multimeasure notes and rests.
294 These bars will not appear on the printed output. If not set (the
295 default) multimeasure notes and rests expand into their full length,
296 printing the appropriate number of empty bars so that synchronization
297 with other voices is preserved.
301 @@lilypond[fragment,verbatim,center]
302 r1 r1*3 R1*3 \\\\property Score.skipBars= ##t r1*3 R1*3
306 (skipTypesetting ,boolean?
307 "When true, all no typesetting is done, speeding
308 up the interpretation phase. This speeds up debugging large scores.")
309 (soloADue ,boolean? "set Solo/A due texts in the part combiner?")
310 (soloIIText ,string? "text for begin of solo for voice ``two'' when part-combining.")
311 (soloText ,string? "text for begin of solo when part-combining.")
312 (squashedPosition ,integer? " Vertical position of
313 squashing for @internalsref{Pitch_squash_engraver}.")
315 (stringOneTopmost ,boolean? "Whether the 1st string is printed on the
316 top line of the tablature.")
318 (stanza ,markup? "Stanza `number' to print before the start of a
319 verse. Use in Lyrics context.")
321 (stemLeftBeamCount ,integer? " Specify the number of beams to draw on
322 the left side of the next note. Overrides automatic beaming. The
323 value is only used once, and then it is erased.")
325 (stemRightBeamCount ,integer? "See @code{stemLeftBeamCount}.")
327 (stringTunings ,list? "The tablature strings tuning. It is a list
328 of the pitch (in semitones) of each string (starting with the lower
331 (subdivideBeams ,boolean? "If set, multiple beams will be subdivided
332 at beat positions by only drawing one beam over the beat.")
334 (systemStartDelimiter ,symbol? "Which grob to make for the start of
335 the system/staff? Set to @code{SystemStartBrace},
336 @code{SystemStartBracket} or @code{SystemStartBar}.")
338 (tablatureFormat ,procedure? "Function formatting a tab note head; it
339 takes a string number, a list of string tunings and Pitch object. It
340 returns the text as a string.")
342 (timeSignatureFraction ,number-pair?
343 "pair of numbers, signifying the time
344 signature. For example @code{#'(4 . 4)} is a 4/4 time signature.")
346 (timing ,boolean? " Keep administration of measure length, position, bar number, etc?
347 Switch off for cadenzas.")
349 "The tonic of the current scale")
351 (tremoloFlags ,integer? "Number of tremolo flags to add if no
352 number is specified.")
354 (tupletNumberFormatFunction
356 "Function taking a music as input, producing a string. This function
357 is called to determine the text to print on a tuplet bracket.")
359 (tupletSpannerDuration ,ly:moment? "
360 Normally a tuplet bracket is as wide as the
361 @code{\\times} expression that gave rise to it. By setting this
362 property, you can make brackets last shorter. Example
365 @@lilypond[verbatim,fragment]
366 context Voice \\times 2/3 @{
367 property Voice.tupletSpannerDuration = #(ly:make-moment 1 4)
373 (verticalAlignmentChildCallback ,procedure? "What callback to add
374 to children of a vertical alignment. It determines what
375 procedure is used on the alignment itself.")
376 (verticalExtent ,number-pair? "Hard coded vertical extent. The format
377 is a pair of dimensions, for example, this sets the sizes of a staff
378 to 10 (5+5) staffspaces high.
381 \\set Staff.verticalExtent = #'(-5.0 . 5.0)
385 This does not work for Voice or any other context that doesn't form a
388 (vocalName ,markup? "Name of a vocal line.")
389 (vocNam ,markup? "Name of a vocal line, short version.")
391 (voltaOnThisStaff ,boolean?
392 "Normally, volta brackets are put only on the
393 topmost staff. Setting this variable will create a bracket on
394 this staff as well.")
396 (voltaSpannerDuration ,ly:moment? "This specifies the maximum duration
397 to use for the brackets printed for @code{\\alternative}. This can be
398 used to shrink the length of brackets in the situation where one
399 alternative is very large.")
403 "This property is read to determine what type of bar line to create.
407 \\set Staff.whichBar = \"|:\"
410 This will create a start-repeat bar in this staff only.
411 Valid values are described in @internalsref{bar-line-interface}.
415 (define-public all-internal-translation-properties
418 (set-object-property! (car x) 'internal-translation #t)
419 (apply translator-property-description x)
423 `((slurMelismaBusy ,boolean? "Signal if a slur is present.")
424 (originalCentralCPosition
426 "Used for temporary overriding middle C in octavation brackets. ")
427 (melismaBusy ,boolean? "Signifies
428 whether a melisma is active. This can be used to signal melismas on
429 top of those automatically detected. ")
430 (graceSettings ,vector?
431 "Overrides for grace notes. This property should
432 be manipulated through the @code{add-grace-property} function.")
433 (currentCommandColumn ,ly:grob? "Grob that is X-parent to all
434 current breakable (clef, key signature, etc.) items.")
435 (currentMusicalColumn ,ly:grob? "Grob that is X-parent to all
436 non-breakable items (note heads, lyrics, etc.).")
437 (breakableSeparationItem ,ly:grob?
438 "The breakable items in this time step,
441 (localKeySignature ,list? "the key signature at this point in the
442 measure. The format is the same as for keySignature, but can also
443 contain ((@var{octave} . @var{name}) . (@var{alter} . @var{barnumber}))
444 pairs. It is reset at every bar line." )
447 (localKeySignatureChanges ,list? "Experimental. [DOCME]")
449 (finalizations ,list? "List of expressions to evaluate before proceeding to next time step. Internal variable.")
450 (busyGrobs ,list? "a queue of (@var{end-moment} . @var{GROB})
451 conses. This is for internal (C++) use only. This property contains
452 the grobs which are still busy (e.g. note heads, spanners, etc.)
454 (barCheckLastFail ,ly:moment? "Where in the measure did the last barcheck fail?")
455 (associatedVoiceContext ,ly:context? "The context object of the Voice that has the melody for this Lyrics.")
456 (acceptHashTable ,vector? "Internal
457 variable: store table with MusicName to Engraver entries.")
458 (acknowledgeHashTable ,vector?
459 "Internal variable: store interface to engraver smob table for current
462 (beamMelismaBusy ,boolean? "Signal if a beam is present.")
463 (dynamicAbsoluteVolumeFunction ,procedure? "[DOCUMENT-ME]")
465 (lastKeySignature ,list? "Last key signature before a key
468 (scriptDefinitions ,list? "Description of scripts. This is used by
469 Script_engraver for typesetting note-super/subscripts. See
470 @file{scm/script.scm} for more information
472 (quotes ,hash-table? "Hash table, mapping names to music-event vectors.")
473 (stavesFound ,grob-list? "list of all staff-symbols found.")
474 (instrumentSupport ,grob-list? "list of grobs to attach instrument name
476 (tieMelismaBusy ,boolean? "Signal whether a tie is present.")
480 (define-public all-translation-properties
481 (append all-user-translation-properties
482 all-internal-translation-properties))
484 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
486 (define-public default-melisma-properties '(melismaBusy slurMelismaBusy tieMelismaBusy beamMelismaBusy))