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 barlines.")
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. Eg. in 5/8 time @code{'(2 3)}.")
110 (breakAlignOrder ,list? "Defines the order in which
111 prefatory matter (clefs, key signatures) appears, eg. this puts the
112 key signatures after the bar lines:
115 \\property Score.breakAlignOrder = #'(
126 (middleCPosition ,number? "Place of the middle C, measured in half
127 staffspaces. Usually determined by looking at @code{clefPosition} and
130 (chordNameFunction ,procedure?
131 "The function that converts lists of pitches to chord names.")
132 (chordNoteNamer ,procedure?
133 "Function that converts from a pitch object to a text markup. Used for single pitches.")
134 (chordRootNamer ,procedure?
135 "Function that converts from a pitch object to a text markup. Used for chords.")
136 (chordNameExceptions ,list?
137 "Alist of chord exceptions.
138 Contains (@var{chord} . @var{markup}) entries.")
139 (chordNameExceptionsFull ,list?
140 "Alist of chord exceptions.
141 Contains (@var{chord} . @var{markup}) entries.")
142 (chordNameExceptionsPartial
144 "Alist of partial chord exceptions. Contains (@var{chord} . (@var{prefix-markup} @var{suffix-markup})) entries.")
146 (chordNameSeparator ,markup?
147 "The markup object used to separate
148 parts of a chord name.")
149 (chordChanges ,boolean? "Only show changes in chords scheme?")
150 (clefGlyph ,string? "Name of the symbol within the music font.")
151 (clefOctavation ,integer? "Add
152 this much extra octavation. Values of 7 and -7 are common.")
154 (clefPosition ,number? "Where should the center of the clef
155 symbol go, measured in half staff spaces from the center of the staff.")
157 (connectArpeggios ,boolean? " If set, connect arpeggios across
159 (createKeyOnClefChange ,boolean? "Print a key signature whenever the clef is changed.")
160 (crescendoText ,markup? "Text to print at start of non-hairpin crecscendo, ie: @samp{cresc.}")
161 (crescendoSpanner ,symbol? "Type of spanner to be used for crescendi.
162 One of: @samp{hairpin}, @samp{line}, @samp{dashed-line},
163 @samp{dotted-line}. If unset, hairpin type is used.")
164 (decrescendoText ,markup? "Text to print at start of non-hairpin decrecscendo, ie: @samp{dim.}")
166 (drumPitchTable ,hash-table? "A table mapping percussion
167 instruments (symbols) to pitches.")
169 (drumStyleTable ,hash-table? "A hash table containing mapping
170 drums to layout settings. Predefined values: @samp{drums-style},
171 @samp{timbales-style}, @samp{congas-style}, @samp{bongos-style} and
172 @samp{percussion-style}.
174 The layout style is a hash table, containing the drum-pitches (eg. the
175 symbol @samp{hihat}) as key, and a list (@var{notehead-style}
176 @var{script} @var{vertical-position}) as values.
178 (currentBarNumber ,integer? "Contains the current barnumber. This property is incremented at
181 (defaultBarType ,string? "Sets the default type of bar line.
182 See @code{whichBar} for information on available bar types.
184 This variable is read by @internalsref{Timing_engraver} at
185 @internalsref{Score} level.
188 (decrescendoSpanner ,symbol? "See @code{crescendoSpanner}.")
190 (explicitClefVisibility ,procedure? "@samp{break-visibility} function for clef changes.")
192 (explicitKeySignatureVisibility ,procedure?
193 "@samp{break-visibility} function for explicit key
194 changes. @samp{\\override} of @samp{#'break-visibility} will set the
195 visibility for normal (i.e. at the start of the line) key signatures.")
197 (extraNatural ,boolean? "Whether to typeset an
198 extra natural sign before accidentals changing from a non-natural to
199 another non-natural.")
201 (extraVerticalExtent ,number-pair?
202 "extra vertical extent, same format as @var{minimumVerticalExtent}")
205 (followVoice ,boolean? "if set, note heads are tracked across staff
206 switches by a thin line")
209 "The relative size of all grobs in a context. ")
211 (fingeringOrientations ,list?
212 "List of symbols, containing
213 @samp{left}, @samp{right}, @samp{up} and/or @samp{down}. This list
214 determines where fingerings are put relative to the chord being
217 (forceClef ,boolean? "Show clef symbol, even if it has not
218 changed. Only active for the first clef after the property is set, not
219 for the full staff.")
221 (highStringOne ,boolean? "Whether the 1st string is the string with
222 highest pitch on the instrument. This used by the automatic string
223 selector for tab notation.")
225 (ignoreMelismata ,boolean? "Ignore melismata for this @internalsref{Lyrics} line.")
226 (instr ,markup? "See @code{instrument}")
228 (instrument ,markup? "The name to print left of a staff. The
229 @code{instrument} property labels the staff in the first system, and
230 the @code{instr} property labels following lines.")
231 (instrumentEqualizer ,procedure? "
232 Function taking a string (instrument name), and returning a (@var{min} . @var{max}) pair of numbers for the loudness range of the instrument.
234 (instrumentTransposition ,ly:pitch? "Define the transposition of the instrument. This is used to transpose the MIDI output, and @code{\\quote}s.")
236 (keyAccidentalOrder ,list? " Alist that defines in what order
237 alterations should be printed. The format is (@var{name}
238 . @var{alter}), where @var{name} is from 0 .. 6 and @var{alter} from -1, 1.
241 (keySignature ,list? "The current key signature. This is an alist
242 containing (@var{name} . @var{alter}) or ((@var{octave} . @var{name}) . @var{alter}).
243 where @var{name} is from 0.. 6 and
244 @var{alter} from -4 (double flat) to 4 (double sharp).
247 (majorSevenSymbol ,markup? "How should
248 the major 7th be formatted in a chord name?")
249 (markFormatter ,procedure? "Procedure
250 taking as arguments context and rehearsal mark. It should return the
251 formatted mark as a markup object.")
253 (measureLength ,ly:moment? "Length of one
254 measure in the current time signature.")
256 (measurePosition ,ly:moment? "How much of the current measure
257 have we had. This can be set manually to create incomplete
260 (melismaBusyProperties ,list? "List of properties (symbols) to
261 determine whether a melisma is playing. Setting this property will
262 influence how lyrics are aligned to notes. For example, if set to
263 @code{#'(melismaBusy beamMelismaBusy)}, only manual melismata and
264 manual beams are considered. Possible values include
265 @code{melismaBusy}, @code{slurMelismaBusy}, @code{tieMelismaBusy}, and
266 @code{beamMelismaBusy}")
269 (metronomeMarkFormatter ,procedure? "How to produce a metronome
270 markup. Called with 2 arguments, event and context.")
271 (midiInstrument ,string? "Name of the MIDI instrument to use ")
272 (midiMinimumVolume ,number? "Sets the minimum loudness for MIDI. Ranges from 0 to 1.")
273 (midiMaximumVolume ,number? "Analogous to @code{midiMinimumVolume}.")
274 (minimumFret ,number? "The tablature auto string-selecting mechanism
275 selects the highest string with a fret at least @var{minimumFret}")
276 (minimumVerticalExtent ,number-pair? "minimum vertical extent, same
277 format as @var{verticalExtent}")
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
284 (ottavation ,string? "If set, the text for an ottava spanner. Changing
285 this creates a new text spanner. ")
286 (pedalSustainStrings ,list? "List of string to print for
287 sustain-pedal. Format is (@var{up} @var{updown} @var{down}), where
288 each of the three is the string to print when this is done with the
290 (pedalUnaCordaStrings ,list? "See @code{pedalSustainStrings}.")
291 (pedalSostenutoStrings ,list? "See @code{pedalSustainStrings}.")
292 (pedalSustainStyle ,symbol? "A symbol that indicates how to print
293 sustain pedals: @code{text}, @code{bracket} or @code{mixed} (both).")
294 (pedalUnaCordaStyle ,symbol? "see @code{pedalSustainStyle}.")
295 (pedalSostenutoStyle ,symbol? "see @code{pedalSustainStyle}.")
296 (printOctaveNames ,boolean? "Print octave marks for the NoteNames context.")
297 (rehearsalMark ,integer? "The last rehearsal mark printed.")
298 (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}")
300 (restNumberThreshold ,number?
301 "If a multimeasure rest takes less
302 than this number of measures, no number is printed. ")
304 (skipBars ,boolean? "If set to true, then
305 skip the empty bars that are produced by multimeasure notes and rests.
306 These bars will not appear on the printed output. If not set (the
307 default) multimeasure notes and rests expand into their full length,
308 printing the appropriate number of empty bars so that synchronization
309 with other voices is preserved.
313 @@lilypond[fragment,verbatim,center]
314 r1 r1*3 R1*3 \\\\property Score.skipBars= ##t r1*3 R1*3
318 (skipTypesetting ,boolean?
319 "When true, all no typesetting is done, speeding
320 up the interpretation phase. This speeds up debugging large scores.")
321 (soloADue ,boolean? "set Solo/A due texts in the part combiner?")
322 (soloIIText ,string? "text for begin of solo for voice ``two'' when part-combining.")
323 (soloText ,string? "text for begin of solo when part-combining.")
324 (squashedPosition ,integer? " Vertical position of
325 squashing for @internalsref{Pitch_squash_engraver}.")
327 (stringOneTopmost ,boolean? "Whether the 1st string is printed on the
328 top line of the tablature.")
330 (stanza ,markup? "Stanza `number' to print before the start of a
331 verse. Use in Lyrics context.")
333 (stemLeftBeamCount ,integer? " Specify the number of beams to draw on
334 the left side of the next note. Overrides automatic beaming. The
335 value is only used once, and then it is erased.")
337 (stemRightBeamCount ,integer? "See @code{stemLeftBeamCount}.")
339 (stringTunings ,list? "The tablature strings tuning. It is a list
340 of the pitch (in semitones) of each string (starting with the lower
343 (subdivideBeams ,boolean? "If set, multiple beams will be subdivided
344 at beat positions by only drawing one beam over the beat.")
346 (systemStartDelimiter ,symbol? "Which grob to make for the start of
347 the system/staff? Set to @code{SystemStartBrace},
348 @code{SystemStartBracket} or @code{SystemStartBar}.")
350 (tablatureFormat ,procedure? "Function formatting a tab notehead; it
351 takes a string number, a list of string tunings and Pitch object. It
352 returns the text as a string.")
354 (timeSignatureFraction ,number-pair?
355 "pair of numbers, signifying the time
356 signature. For example @code{#'(4 . 4)} is a 4/4 time signature.")
358 (timing ,boolean? " Keep administration of measure length, position, bar number, etc?
359 Switch off for cadenzas.")
361 "The tonic of the current scale")
363 (tremoloFlags ,integer? "Number of tremolo flags to add if no
364 number is specified.")
366 (tupletNumberFormatFunction
368 "Function taking a music as input, producing a string. This function
369 is called to determine the text to print on a tuplet bracket.")
371 (tupletSpannerDuration ,ly:moment? "
372 Normally a tuplet bracket is as wide as the
373 @code{\\times} expression that gave rise to it. By setting this
374 property, you can make brackets last shorter. Example
377 @@lilypond[verbatim,fragment]
378 context Voice \\times 2/3 @{
379 property Voice.tupletSpannerDuration = #(ly:make-moment 1 4)
385 (verticalAlignmentChildCallback ,procedure? "What callback to add
386 to children of a vertical alignment. It determines what
387 procedure is used on the alignment itself.")
388 (verticalExtent ,number-pair? "Hard coded vertical extent. The format
389 is a pair of dimensions, for example, this sets the sizes of a staff
390 to 10 (5+5) staffspaces high.
393 \\set Staff.verticalExtent = #'(-5.0 . 5.0)
397 This does not work for Voice or any other context that doesn't form a
400 (vocalName ,markup? "Name of a vocal line.")
401 (vocNam ,markup? "Name of a vocal line, short version.")
403 (voltaOnThisStaff ,boolean?
404 "Normally, volta brackets are put only on the
405 topmost staff. Setting this variable will create a bracket on
406 this staff as well.")
408 (voltaSpannerDuration ,ly:moment? "This specifies the maximum duration
409 to use for the brackets printed for @code{\\alternative}. This can be
410 used to shrink the length of brackets in the situation where one
411 alternative is very large.")
415 "This property is read to determine what type of barline to create.
419 \\set Staff.whichBar = \"|:\"
422 This will create a start-repeat bar in this staff only.
423 Valid values are described in @internalsref{bar-line-interface}.
427 (define-public all-internal-translation-properties
430 (set-object-property! (car x) 'internal-translation #t)
431 (apply translator-property-description x)
435 `((slurMelismaBusy ,boolean? "Signal if a slur is present.")
436 (originalCentralCPosition
438 "Used for temporary overriding middle C in octavation brackets. ")
439 (melismaBusy ,boolean? "Signifies
440 whether a melisma is active. This can be used to signal melismas on
441 top of those automatically detected. ")
442 (graceSettings ,vector?
443 "Overrides for grace notes. This property should
444 be manipulated through the @code{add-grace-property} function.")
445 (currentCommandColumn ,ly:grob? "Grob that is X-parent to all
446 current breakable (clef, key signature, etc.) items.")
447 (currentMusicalColumn ,ly:grob? "Grob that is X-parent to all
448 non-breakable items (note heads, lyrics, etc.).")
449 (breakableSeparationItem ,ly:grob?
450 "The breakable items in this time step,
453 (localKeySignature ,list? "the key signature at this point in the
454 measure. The format is the same as for keySignature, but can also
455 contain ((@var{octave} . @var{name}) . (@var{alter} . @var{barnumber}))
456 pairs. It is reset at every bar line." )
459 (localKeySignatureChanges ,list? "Experimental. [DOCME]")
461 (finalizations ,list? "List of expressions to evaluate before proceeding to next time step. Internal variable.")
462 (busyGrobs ,list? "a queue of (@var{end-moment} . @var{GROB})
463 conses. This is for internal (C++) use only. This property contains
464 the grobs which are still busy (eg. noteheads, spanners, etc.)
466 (barCheckLastFail ,ly:moment? "Where in the measurze did the last barcheck fail?")
467 (associatedVoiceContext ,ly:context? "The context object of the Voice that has the melody for this Lyrics.")
468 (acceptHashTable ,vector? "Internal
469 variable: store table with MusicName to Engraver entries.")
470 (acknowledgeHashTable ,vector?
471 "Internal variable: store interface to engraver smob table for current
474 (beamMelismaBusy ,boolean? "Signal if a beam is present.")
475 (dynamicAbsoluteVolumeFunction ,procedure? "[DOCUMENT-ME]")
477 (lastKeySignature ,list? "Last key signature before a key
480 (scriptDefinitions ,list? "Description of scripts. This is used by
481 Script_engraver for typesetting note-super/subscripts. See
482 @file{scm/script.scm} for more information
484 (quotes ,hash-table? "Hash table, mapping names to music-event vectors.")
485 (stavesFound ,grob-list? "list of all staff-symbols found.")
486 (instrumentSupport ,grob-list? "list of grobs to attach instrument name
488 (tieMelismaBusy ,boolean? "Signal whether a tie is present.")
492 (define-public all-translation-properties
493 (append all-user-translation-properties
494 all-internal-translation-properties))
496 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
498 (define-public default-melisma-properties '(melismaBusy slurMelismaBusy tieMelismaBusy beamMelismaBusy))