1 %%%% -*- Mode: Scheme -*-
3 %%%% This file is part of LilyPond, the GNU music typesetter.
5 %%%% Copyright (C) 2003--2012 Han-Wen Nienhuys <hanwen@xs4all.nl>
6 %%%% Jan Nieuwenhuizen <janneke@gnu.org>
8 %%%% LilyPond is free software: you can redistribute it and/or modify
9 %%%% it under the terms of the GNU General Public License as published by
10 %%%% the Free Software Foundation, either version 3 of the License, or
11 %%%% (at your option) any later version.
13 %%%% LilyPond is distributed in the hope that it will be useful,
14 %%%% but WITHOUT ANY WARRANTY; without even the implied warranty of
15 %%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 %%%% GNU General Public License for more details.
18 %%%% You should have received a copy of the GNU General Public License
19 %%%% along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
24 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
25 %% this file is alphabetically sorted.
26 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
28 %% need SRFI-1 for filter; optargs for lambda*
29 #(use-modules (srfi srfi-1)
32 %% TODO: using define-music-function in a .scm causes crash.
35 #(def-grace-function startAcciaccaturaMusic stopAcciaccaturaMusic
36 (_i "Create an acciaccatura from the following music expression"))
38 %% keep these two together
39 "instrument-definitions" = #'()
40 addInstrumentDefinition =
41 #(define-void-function
42 (parser location name lst) (string? list?)
43 (_i "Create instrument @var{name} with properties @var{list}.")
44 (set! instrument-definitions (acons name lst instrument-definitions)))
47 #(define-void-function (parser location name music) (string? ly:music?)
48 (_i "Define @var{music} as a quotable music expression named
50 (add-quotable parser name music))
52 %% keep these two together
53 afterGraceFraction = #(cons 6 8)
55 #(define-music-function (parser location main grace) (ly:music? ly:music?)
56 (_i "Create @var{grace} note(s) after a @var{main} music expression.")
57 (let ((main-length (ly:music-length main))
58 (fraction (ly:parser-lookup parser 'afterGraceFraction)))
59 (make-simultaneous-music
62 (make-sequential-music
65 (make-music 'SkipMusic
66 'duration (ly:make-duration
68 (* (ly:moment-main-numerator main-length)
70 (* (ly:moment-main-denominator main-length)
72 (make-music 'GraceMusic
76 %% music identifiers not allowed at top-level,
77 %% so this is a music-function instead.
79 #(define-music-function (location parser) ()
80 (_i "Allow a page turn. May be used at toplevel (ie between scores or
81 markups), or inside a score.")
82 (make-music 'EventChord
84 'page-turn-permission 'allow
85 'elements (list (make-music 'PageTurnEvent
86 'break-permission 'allow))))
89 #(define-music-function (parser location tag more music)
90 (symbol? ly:music? ly:music?)
91 (_i "Append @var{more} to the @code{elements} of all music
92 expressions in @var{music} that are tagged with @var{tag}.")
93 (music-map (lambda (m)
94 (if (memq tag (ly:music-property m 'tags))
95 (set! (ly:music-property m 'elements)
96 (append (ly:music-property m 'elements)
102 #(define-music-function (parser location proc) (procedure?)
103 (_i "Modify context properties with Scheme procedure @var{proc}.")
104 (make-music 'ApplyContext
108 #(define-music-function (parser location func music) (procedure? ly:music?)
109 (_i"Apply procedure @var{func} to @var{music}.")
113 #(define-music-function (parser location ctx proc) (symbol? procedure?)
114 (_i "Apply function @code{proc} to every layout object in context @code{ctx}")
115 (make-music 'ApplyOutputEvent
120 #(def-grace-function startAppoggiaturaMusic stopAppoggiaturaMusic
121 (_i "Create an appoggiatura from @var{music}"))
123 % for regression testing purposes.
125 #(define-music-function (parser location l r) (pair? pair?)
126 (_i "Testing function: check whether the beam quants @var{l} and @var{r} are correct")
127 (make-grob-property-override 'Beam 'positions (check-quant-callbacks l r)))
129 % for regression testing purposes.
131 #(define-music-function (parser location comp) (procedure?)
132 (_i "Testing function: check whether the slope of the beam is the same as @code{comp}")
133 (make-grob-property-override 'Beam 'positions (check-slope-callbacks comp)))
136 #(define-music-function (parser location music) (ly:music?)
137 (_i "Make voices that switch between staves automatically")
138 (make-autochange-music parser music))
143 #(define-music-function (parser location grob-name offset text)
144 (symbol? number-pair? markup?)
145 (_i "Attach @var{text} to @var{grob-name} at offset @var{offset}
146 (use like @code{\\once})")
147 (make-music 'AnnotateOutputEvent
149 'X-offset (car offset)
150 'Y-offset (cdr offset)
154 #(define-music-function (parser location offset text) (number-pair? markup?)
155 (_i "Attach @var{text} at @var{offset} (use like @code{\\tweak})")
156 (make-music 'AnnotateOutputEvent
157 'X-offset (car offset)
158 'Y-offset (cdr offset)
162 #(define-music-function (parser location type) (string?)
163 (_i "Insert a bar line of type @var{type}")
165 (make-property-set 'whichBar type)
169 #(define-music-function (parser location n) (integer?)
170 (_i "Print a warning if the current bar number is not @var{n}.")
171 (make-music 'ApplyContext
174 (let ((cbn (ly:context-property c 'currentBarNumber)))
175 (if (and (number? cbn) (not (= cbn n)))
176 (ly:input-warning location
177 "Barcheck failed got ~a expect ~a"
181 #(define-music-function (parser location delta) (real?)
182 (_i "Create a fall or doit of pitch interval @var{delta}.")
183 (make-music 'BendAfterEvent
187 #(define-void-function (parser location newfilename) (string?)
188 (_i "Direct output for the current book block to @var{newfilename}.")
189 (set! (paper-variable parser #f 'output-filename) newfilename))
192 #(define-void-function (parser location newsuffix) (string?)
193 (_i "Set the output filename suffix for the current book block to
195 (set! (paper-variable parser #f 'output-suffix) newsuffix))
197 %% \breathe is defined as a music function rather than an event identifier to
198 %% ensure it gets useful input location information: as an event identifier,
199 %% it would have to be wrapped in an EventChord to prevent it from being
200 %% treated as a post_event by the parser
202 #(define-music-function (parser location) ()
203 (_i "Insert a breath mark.")
204 (make-music 'BreathingEvent))
207 #(define-music-function (parser location type) (string?)
208 (_i "Set the current clef to @var{type}.")
209 (make-clef-set type))
213 #(define-music-function (parser location args) (pair?)
214 (_i "Create compound time signatures. The argument is a Scheme list of
215 lists. Each list describes one fraction, with the last entry being the
216 denominator, while the first entries describe the summands in the
217 enumerator. If the time signature consists of just one fraction,
218 the list can be given directly, i.e. not as a list containing a single list.
219 For example, a time signature of (3+1)/8 + 2/4 would be created as
220 @code{\\compoundMeter #'((3 1 8) (2 4))}, and a time signature of (3+2)/8
221 as @code{\\compoundMeter #'((3 2 8))} or shorter
222 @code{\\compoundMeter #'(3 2 8)}.")
223 (let* ((mlen (calculate-compound-measure-length args))
224 (beat (calculate-compound-base-beat args))
225 (beatGrouping (calculate-compound-beat-grouping args))
226 (timesig (cons (ly:moment-main-numerator mlen)
227 (ly:moment-main-denominator mlen))))
229 \once \override Staff.TimeSignature #'stencil = #(lambda (grob)
230 (grob-interpret-markup grob (format-compound-time args)))
231 \set Timing.timeSignatureFraction = $timesig
232 \set Timing.baseMoment = $beat
233 \set Timing.beatStructure = $beatGrouping
234 \set Timing.beamExceptions = #'()
235 \set Timing.measureLength = $mlen
240 #(define-music-function (parser location type) (string?)
241 (_i "Set the current cue clef to @var{type}.")
242 (make-cue-clef-set type))
244 #(define-music-function (parser location) ()
245 (_i "Unset the current cue clef.")
246 (make-cue-clef-unset))
249 #(define-music-function
250 (parser location what dir main-music) (string? ly:dir? ly:music?)
251 (_i "Insert contents of quote @var{what} corresponding to @var{main-music},
252 in a CueVoice oriented by @var{dir}.")
253 (make-music 'QuoteMusic
255 'quoted-context-type 'Voice
256 'quoted-context-id "cue"
257 'quoted-music-name what
258 'quoted-voice-direction dir))
261 #(define-music-function
262 (parser location what dir clef main-music) (string? ly:dir? string? ly:music?)
263 (_i "Insert contents of quote @var{what} corresponding to @var{main-music},
264 in a CueVoice oriented by @var{dir}.")
265 (make-music 'QuoteMusic
267 'quoted-context-type 'Voice
268 'quoted-context-id "cue"
269 'quoted-music-name what
270 'quoted-music-clef clef
271 'quoted-voice-direction dir))
276 #(define-music-function (parser location music) (ly:music?)
277 (_i "Display the LilyPond input representation of @var{music}
280 (display-lily-music music parser)
284 #(define-music-function (parser location music) (ly:music?)
285 (_i "Display the internal representation of @var{music} to the console.")
287 (display-scheme-music music)
293 #(define-music-function (parser location music) (ly:music?)
294 (_i "Terminate the next spanner prematurely after exactly one note
295 without the need of a specific end spanner.")
296 (if (memq (ly:music-property music 'name) '(EventChord NoteEvent))
297 (let* ((start-span-evs (filter (lambda (ev)
298 (equal? (ly:music-property ev 'span-direction)
300 (extract-typed-music music 'span-event)))
303 (let ((c (music-clone m)))
304 (set! (ly:music-property c 'span-direction) STOP)
307 (end-ev-chord (make-music 'EventChord
308 'elements stop-span-evs))
309 (total (make-music 'SequentialMusic
310 'elements (list music
315 (ly:input-message location (_ "argument endSpanners is not an EventChord: ~a") music)
319 #(define-music-function (parser location music) (ly:music?)
320 (_i "Compatibility function wrapping @code{EventChord} around
321 isolated rhythmic events occuring since version 2.15.28, after
322 expanding repeat chords @samp{q}.")
323 (event-chord-wrap! music parser))
326 #(define-music-function (parser location factor argument) (ly:moment? ly:music?)
327 (_i "Adjust durations of music in @var{argument} by rational @var{factor}.")
328 (let ((orig-duration (ly:music-length argument))
329 (multiplier (ly:make-moment 1 1)))
333 (if (< 0 (ly:moment-main-denominator (ly:music-length mus)))
335 (ly:music-compress mus multiplier)
336 (set! multiplier (ly:moment-mul factor multiplier)))))
337 (extract-named-music argument '(EventChord NoteEvent RestEvent SkipEvent)))
340 (ly:moment-div orig-duration (ly:music-length argument)))
345 #(define-music-function (parser location text offset grob-name footnote)
346 ((markup?) number-pair? (symbol? '()) markup?)
347 (_i "Attach @var{text} at @var{offset} with @var{text} referring to
348 @var{footnote}. If @var{text} is given as @code{\\default}, use
349 autonumbering instead. Note that, for this to take effect,
350 auto-numbering must be turned on in the paper block. Otherwise, no
351 number will appear. Footnotes are applied like articulations. If a
352 symbol @var{grob-name} is specified, all grobs of that kind at the
353 current time step are affected.")
356 'X-offset (car offset)
357 'Y-offset (cdr offset)
358 'automatically-numbered (not text)
359 'text (or text (make-null-markup))
360 'footnote-text footnote
364 #(def-grace-function startGraceMusic stopGraceMusic
365 (_i "Insert @var{music} as grace notes."))
368 #(define-scheme-function (parser location descriptions) (list?)
369 (_i "Create a context modification from @var{descriptions}, a list
370 in the format of @code{all-grob-descriptions}.")
373 (list 'assign (car p) (list (cdr p))))
376 harmonicByFret = #(define-music-function (parser location fret music) (number? ly:music?)
377 (_i "Convert @var{music} into harmonics; the resulting notes resemble
378 harmonics played on a fretted instrument by touching the strings above @var{fret}.")
379 (let* ((fret (number->string fret))
380 (pitch (fret->pitch fret)))
381 (make-sequential-music
384 \override TabNoteHead #'stencil = #(tab-note-head::print-custom-fret-label fret)
387 (calc-harmonic-pitch pitch music))
389 \revert TabNoteHead #'stencil
392 harmonicByRatio = #(define-music-function (parser location ratio music) (number? ly:music?)
393 (_i "Convert @var{music} into harmonics; the resulting notes resemble
394 harmonics played on a fretted instrument by touching the strings above the point
395 given through @var{ratio}.")
396 (let ((pitch (ratio->pitch ratio))
397 (fret (ratio->fret ratio)))
398 (make-sequential-music
401 \override TabNoteHead #'stencil = #(tab-note-head::print-custom-fret-label fret)
404 (calc-harmonic-pitch pitch music))
406 \revert TabNoteHead #'stencil
410 #(define-music-function
411 (parser location name) (string?)
412 (_i "Switch instrument to @var{name}, which must be predefined with
413 @code{\\addInstrumentDefinition}.")
414 (let* ((handle (assoc name instrument-definitions))
415 (instrument-def (if handle (cdr handle) '())))
418 (ly:input-warning location "No such instrument: ~a" name))
420 (make-music 'SimultaneousMusic
432 #(define-music-function (parser location tag music) (symbol? ly:music?)
433 (_i "Include only elements of @var{music} that are tagged with @var{tag}.")
436 (let* ((tags (ly:music-property m 'tags))
437 (res (memq tag tags)))
444 #(define-music-function (parser location tonic pitch-alist)
445 ((ly:pitch? '()) (list? '()))
446 (_i "Set key to @var{tonic} and scale @var{pitch-alist}.
447 If both are null, just generate @code{KeyChangeEvent}.")
448 (cond ((null? tonic) (make-music 'KeyChangeEvent))
450 (ly:parser-error parser (_ "second argument must be pitch list")
452 (make-music 'SequentialMusic 'void #t))
455 (make-music 'KeyChangeEvent
456 'tonic (ly:make-pitch 0 0 0)
457 'pitch-alist pitch-alist)
461 #(define-music-function (parser location music) (ly:music?)
462 (_i "Remove cue notes from @var{music}.")
465 (if (and (string? (ly:music-property mus 'quoted-music-name))
466 (string=? (ly:music-property mus 'quoted-context-id "") "cue"))
467 (ly:music-property mus 'element)
474 #(define-music-function (parser location label) (symbol?)
475 (_i "Create @var{label} as a bookmarking label.")
476 (make-music 'EventChord
479 'elements (list (make-music 'LabelEvent
480 'page-label label))))
484 #(define-void-function (parser location language) (string?)
485 (_i "Set note names for language @var{language}.")
486 (note-names-language parser language))
488 languageSaveAndChange =
489 #(define-void-function (parser location language) (string?)
490 (_i "Store the previous pitchnames alist, and set a new one.")
491 (set! previous-pitchnames pitchnames)
492 (note-names-language parser language))
495 #(define-void-function (parser location) ()
496 (_i "Restore a previously-saved pitchnames alist.")
497 (if previous-pitchnames
499 (set! pitchnames previous-pitchnames)
500 (ly:parser-set-note-names parser pitchnames))
501 (ly:input-warning location (_ "No other language was defined previously. Ignoring."))))
505 #(define-music-function (parser location arg) (ly:music?)
506 (_i "Display chords in @var{arg} as clusters.")
507 (music-map note-to-cluster arg))
510 #(define-music-function (parser location around to scale music)
511 (ly:pitch? ly:pitch? ly:music? ly:music?)
512 (_i "Invert @var{music} about @var{around} using @var{scale} and
513 transpose from @var{around} to @var{to}.")
514 (let ((inverter (make-modal-inverter around to scale)))
515 (change-pitches music inverter)
519 #(define-music-function (parser location from to scale music)
520 (ly:pitch? ly:pitch? ly:music? ly:music?)
521 (_i "Transpose @var{music} from pitch @var{from} to pitch @var{to}
523 (let ((transposer (make-modal-transposer from to scale)))
524 (change-pitches music transposer)
528 #(define-music-function
529 (parser location around to music) (ly:pitch? ly:pitch? ly:music?)
530 (_i "Invert @var{music} about @var{around} and
531 transpose from @var{around} to @var{to}.")
532 (music-invert around to music))
535 #(define-music-function
536 (parser location label) ((scheme? '()))
537 "Make the music for the \\mark command."
538 (let* ((set (and (integer? label)
539 (context-spec-music (make-property-set 'rehearsalMark label)
541 (ev (make-music 'MarkEvent
545 (make-sequential-music (list set ev))
547 (set! (ly:music-property ev 'label) label)
551 #(define-music-function (parser location proc mus) (procedure? ly:music?)
552 (_i "Apply @var{proc} to @var{mus} and all of the music it contains.")
553 (music-map proc mus))
555 %% noPageBreak and noPageTurn are music functions (not music indentifiers),
556 %% because music identifiers are not allowed at top-level.
558 #(define-music-function (location parser) ()
559 (_i "Forbid a page break. May be used at toplevel (i.e., between scores or
560 markups), or inside a score.")
561 (make-music 'EventChord
563 'page-break-permission 'forbid
564 'elements (list (make-music 'PageBreakEvent
565 'break-permission '()))))
568 #(define-music-function (location parser) ()
569 (_i "Forbid a page turn. May be used at toplevel (i.e., between scores or
570 markups), or inside a score.")
571 (make-music 'EventChord
573 'page-turn-permission 'forbid
574 'elements (list (make-music 'PageTurnEvent
575 'break-permission '()))))
580 #(define-music-function (parser location pitch) (ly:pitch?)
582 (make-music 'RelativeOctaveCheck
586 #(define-music-function (parser location music) (ly:music?)
587 (_i "Set @code{once} to @code{#t} on all layout instruction events in @var{music}.")
590 (cond ((music-is-of-type? m 'layout-instruction-event)
591 (set! (ly:music-property m 'once) #t))
592 ((ly:duration? (ly:music-property m 'duration))
593 (ly:music-warning m (_ "Cannot apply \\once to timed music"))))
598 #(define-music-function (parser location octave) (integer?)
599 (_i "Set the octavation.")
600 (make-music 'OttavaMusic
601 'ottava-number octave))
603 overrideTimeSignatureSettings =
604 #(define-music-function
605 (parser location time-signature base-moment beat-structure beam-exceptions)
606 (pair? pair? cheap-list? cheap-list?)
608 (_i "Override @code{timeSignatureSettings}
609 for time signatures of @var{time-signature} to have settings
610 of @var{base-moment}, @var{beat-structure}, and @var{beam-exceptions}.")
612 ;; TODO -- add warning if largest value of grouping is
613 ;; greater than time-signature.
614 (let ((setting (make-setting base-moment beat-structure beam-exceptions)))
615 (override-time-signature-setting time-signature setting)))
618 #(define-music-function (parser location name property value)
619 (string? symbol? scheme?)
621 (_i "Set @var{property} to @var{value} in all grobs named @var{name}.
622 The @var{name} argument is a string of the form @code{\"Context.GrobName\"}
623 or @code{\"GrobName\"}.")
625 (let ((name-components (string-split name #\.))
626 (context-name 'Bottom)
629 (if (> 2 (length name-components))
630 (set! grob-name (string->symbol (car name-components)))
632 (set! grob-name (string->symbol (list-ref name-components 1)))
633 (set! context-name (string->symbol (list-ref name-components 0)))))
635 (make-music 'ApplyOutputEvent
636 'context-type context-name
638 (lambda (grob orig-context context)
640 (cdr (assoc 'name (ly:grob-property grob 'meta)))
642 (set! (ly:grob-property grob property) value))))))
646 %% pageBreak and pageTurn are music functions (iso music indentifiers),
647 %% because music identifiers are not allowed at top-level.
649 #(define-music-function (location parser) ()
650 (_i "Force a page break. May be used at toplevel (i.e., between scores or
651 markups), or inside a score.")
652 (make-music 'EventChord
654 'line-break-permission 'force
655 'page-break-permission 'force
656 'elements (list (make-music 'LineBreakEvent
657 'break-permission 'force)
658 (make-music 'PageBreakEvent
659 'break-permission 'force))))
662 #(define-music-function (location parser) ()
663 (_i "Force a page turn between two scores or top-level markups.")
664 (make-music 'EventChord
666 'line-break-permission 'force
667 'page-break-permission 'force
668 'page-turn-permission 'force
669 'elements (list (make-music 'LineBreakEvent
670 'break-permission 'force)
671 (make-music 'PageBreakEvent
672 'break-permission 'force)
673 (make-music 'PageTurnEvent
674 'break-permission 'force))))
677 #(define-void-function (parser location voice-ids music) (list? ly:music?)
678 (_i "Define parallel music sequences, separated by '|' (bar check signs),
679 and assign them to the identifiers provided in @var{voice-ids}.
681 @var{voice-ids}: a list of music identifiers (symbols containing only letters)
683 @var{music}: a music sequence, containing BarChecks as limiting expressions.
688 \\parallelMusic #'(A B C) {
698 (let* ((voices (apply circular-list (make-list (length voice-ids) (list))))
699 (current-voices voices)
700 (current-sequence (list))
705 (define (push-music m)
706 "Push the music expression into the current sequence"
707 (set! current-sequence (cons m current-sequence)))
708 (define (change-voice)
709 "Stores the previously built sequence into the current voice and
710 change to the following voice."
711 (list-set! current-voices 0 (cons (make-music 'SequentialMusic
712 'elements (reverse! current-sequence))
713 (car current-voices)))
714 (set! current-sequence (list))
715 (set! current-voices (cdr current-voices)))
716 (define (bar-check? m)
717 "Checks whether m is a bar check."
718 (eq? (ly:music-property m 'name) 'BarCheck))
719 (define (music-origin music)
720 "Recursively search an origin location stored in music."
721 (cond ((null? music) #f)
722 ((not (null? (ly:music-property music 'origin)))
723 (ly:music-property music 'origin))
724 (else (or (music-origin (ly:music-property music 'element))
725 (let ((origins (remove not (map music-origin
726 (ly:music-property music 'elements)))))
727 (and (not (null? origins)) (car origins)))))))
728 (while (music-is-of-type? music 'music-wrapper-music)
730 (set! music (ly:music-property wrapper 'element)))
732 (set! (ly:music-property wrapper 'element)
733 (make-music 'SequentialMusic
736 (make-music 'SequentialMusic
739 ;; first, split the music and fill in voices
740 ;; We flatten direct layers of SequentialMusic since they are
741 ;; pretty much impossible to avoid when writing music functions.
742 (let rec ((music music))
743 (for-each (lambda (m)
744 (if (eq? (ly:music-property m 'name) 'SequentialMusic)
748 (if (bar-check? m) (change-voice)))))
749 (ly:music-property music 'elements)))
750 (if (not (null? current-sequence)) (change-voice))
751 ;; un-circularize `voices' and reorder the voices
752 (set! voices (map-in-order (lambda (dummy seqs)
756 ;; set origin location of each sequence in each voice
757 ;; for better type error tracking
758 (for-each (lambda (voice)
759 (for-each (lambda (seq)
760 (set! (ly:music-property seq 'origin)
761 (or (music-origin seq) location)))
765 ;; check sequence length
766 (apply for-each (lambda* (#:rest seqs)
767 (let ((moment-reference (ly:music-length (car seqs))))
768 (for-each (lambda (seq moment)
769 (if (not (equal? moment moment-reference))
770 (ly:music-warning seq
771 "Bars in parallel music don't have the same length")))
772 seqs (map-in-order ly:music-length seqs))))
775 ;; bind voice identifiers to the voices
776 (for-each (lambda (voice-id voice)
777 (ly:parser-define! parser voice-id
778 (let ((v (ly:music-deep-copy original)))
779 (set! (ly:music-property
780 (car (extract-named-music
787 #(define-music-function (parser loc arg) (ly:music?)
788 (_i "Tag @var{arg} to be parenthesized.")
790 (if (memq 'event-chord (ly:music-property arg 'types))
791 ;; arg is an EventChord -> set the parenthesize property
792 ;; on all child notes and rests
795 (if (or (memq 'note-event (ly:music-property ev 'types))
796 (memq 'rest-event (ly:music-property ev 'types)))
797 (set! (ly:music-property ev 'parenthesize) #t)))
798 (ly:music-property arg 'elements))
799 ;; No chord, simply set property for this expression:
800 (set! (ly:music-property arg 'parenthesize) #t))
804 #(define-music-function (parser location part1 part2) (ly:music? ly:music?)
805 (_i "Take the music in @var{part1} and @var{part2} and typeset so
806 that they share a staff.")
807 (make-part-combine-music parser
808 (list part1 part2) #f))
811 #(define-music-function (parser location part1 part2) (ly:music? ly:music?)
812 (_i "Take the music in @var{part1} and @var{part2} and typeset so
813 that they share a staff with stems directed upward.")
814 (make-part-combine-music parser
815 (list part1 part2) UP))
818 #(define-music-function (parser location part1 part2) (ly:music? ly:music?)
819 (_i "Take the music in @var{part1} and @var{part2} and typeset so
820 that they share a staff with stems directed downward.")
821 (make-part-combine-music parser
822 (list part1 part2) DOWN))
825 #(define-music-function (location parser type once) (symbol-or-boolean? boolean?)
826 (_i "Override the part-combiner.")
827 (make-music 'EventChord
828 'elements (list (make-music 'PartCombineForceEvent
831 partcombineApart = \partcombineForce #'apart ##f
832 partcombineApartOnce = \partcombineForce #'apart ##t
833 partcombineChords = \partcombineForce #'chords ##f
834 partcombineChordsOnce = \partcombineForce #'chords ##t
835 partcombineUnisono = \partcombineForce #'unisono ##f
836 partcombineUnisonoOnce = \partcombineForce #'unisono ##t
837 partcombineSoloI = \partcombineForce #'solo1 ##f
838 partcombineSoloIOnce = \partcombineForce #'solo1 ##t
839 partcombineSoloII = \partcombineForce #'solo2 ##f
840 partcombineSoloIIOnce = \partcombineForce #'solo2 ##t
841 partcombineAutomatic = \partcombineForce ##f ##f
842 partcombineAutomaticOnce = \partcombineForce ##f ##t
845 #(define-music-function (parser location dur) (ly:duration?)
846 (_i "Make a partial measure.")
848 ;; We use `descend-to-context' here instead of `context-spec-music' to
849 ;; ensure \partial still works if the Timing_translator is moved
851 (context-spec-music (make-music 'PartialSet
853 'partial-duration dur)
858 #(define-music-function
859 (parser location main-note secondary-note)
860 (ly:music? ly:music?)
861 (_i "Print a trill with @var{main-note} as the main note of the trill and
862 print @var{secondary-note} as a stemless note head in parentheses.")
863 (let* ((get-notes (lambda (ev-chord)
864 (extract-named-music ev-chord 'NoteEvent)))
865 (sec-note-events (get-notes secondary-note))
866 (trill-events (extract-named-music main-note 'TrillSpanEvent)))
867 (if (pair? sec-note-events)
869 (let* ((trill-pitch (ly:music-property (car sec-note-events) 'pitch))
870 (forced (ly:music-property (car sec-note-events) 'force-accidental)))
872 (if (ly:pitch? trill-pitch)
873 (for-each (lambda (m)
874 (ly:music-set-property! m 'pitch trill-pitch)) trill-events)
876 (ly:input-warning location (_ "Second argument of \\pitchedTrill should be single note: "))
877 (display sec-note-events)))
880 (for-each (lambda (m)
881 (ly:music-set-property! m 'force-accidental forced))
886 #(define-music-function (parser location tag more music)
887 (symbol? ly:music? ly:music?)
888 (_i "Add @var{more} to the front of @code{elements} of all music
889 expressions in @var{music} that are tagged with @var{tag}.")
890 (music-map (lambda (m)
891 (if (memq tag (ly:music-property m 'tags))
892 (set! (ly:music-property m 'elements)
893 (cons more (ly:music-property m 'elements))))
898 #(define-music-function (parser location what main-music) (string? ly:music?)
899 (_i "Indicate a section of music to be quoted. @var{what} indicates the name
900 of the quoted voice, as specified in an @code{\\addQuote} command.
901 @var{main-music} is used to indicate the length of music to be quoted;
902 usually contains spacers or multi-measure rests.")
903 (make-music 'QuoteMusic
905 'quoted-music-name what))
908 #(define-music-function (parser location pitch music)
909 ((ly:pitch? (ly:make-pitch 0 0 0)) ly:music?)
910 (_i "Make @var{music} relative to @var{pitch} (default @code{c'}).")
911 (ly:make-music-relative! music pitch)
912 (make-music 'RelativeOctaveMusic
916 #(define-music-function (parser location tag music) (symbol? ly:music?)
917 (_i "Remove elements of @var{music} that are tagged with @var{tag}.")
920 (let* ((tags (ly:music-property m 'tags))
921 (res (memq tag tags)))
925 resetRelativeOctave =
926 #(define-music-function (parser location pitch) (ly:pitch?)
927 (_i "Set the octave inside a \\relative section.")
929 (make-music 'SequentialMusic
930 'to-relative-callback
931 (lambda (music last-pitch) pitch)))
934 #(define-music-function (parser location music)
936 (_i "Return @var{music} in reverse order.")
937 (retrograde-music music))
939 revertTimeSignatureSettings =
940 #(define-music-function
941 (parser location time-signature)
944 (_i "Revert @code{timeSignatureSettings}
945 for time signatures of @var{time-signature}.")
946 (revert-time-signature-setting time-signature))
949 #(define-music-function (parser location finger) (number-or-string?)
950 (_i "Apply @var{finger} as a fingering indication.")
955 (if (string? finger) 'text 'digit)
959 #(define-music-function (parser location fraction music)
960 (fraction? ly:music?)
961 (_i "Multiply the duration of events in @var{music} by @var{fraction}.")
962 (ly:music-compress music
963 (ly:make-moment (car fraction) (cdr fraction))))
966 #(define-scheme-function (parser location ctx music)
967 ((symbol?) ly:music?)
968 (_i "Take the layout instruction events from @var{music}, optionally
969 restricted to those applying to context type @var{ctx}, and return
970 a context modification duplicating their effect.")
971 (let ((mods (ly:make-context-mod)))
973 (if (music-is-of-type? m 'layout-instruction-event)
976 (case (ly:music-property m 'name)
979 (ly:music-property m 'symbol)
980 (ly:music-property m 'value)))
983 (ly:music-property m 'symbol)))
986 (ly:music-property m 'symbol)
987 (ly:music-property m 'grob-value)
988 (ly:music-property m 'grob-property-path)))
991 (ly:music-property m 'symbol)
992 (ly:music-property m 'grob-property-path)))))
993 (case (ly:music-property m 'name)
994 ((SequentialMusic SimultaneousMusic)
995 (for-each musicop (ly:music-property m 'elements)))
996 ((ContextSpeccedMusic)
998 (eq? ctx (ly:music-property m 'context-type)))
999 (musicop (ly:music-property m 'element)))))))
1004 #(define-music-function (parser location dur dots arg)
1005 (integer? integer? ly:music?)
1006 (_i "Change the duration of @var{arg} by adding @var{dur} to the
1007 @code{durlog} of @var{arg} and @var{dots} to the @code{dots} of @var{arg}.")
1011 (shift-one-duration-log x dur dots)) arg))
1014 #(define-music-function (parser location dur) (ly:duration?)
1015 (_i "Skip forward by @var{dur}.")
1016 (make-music 'SkipMusic
1021 #(def-grace-function startSlashedGraceMusic stopSlashedGraceMusic
1022 (_i "Create slashed graces (slashes through stems, but no slur) from
1023 the following music expression"))
1026 #(define-music-function (parser location parameters) (list?)
1027 (_i "Set the system stretch, by reading the 'system-stretch property of
1028 the `parameters' assoc list.")
1030 \overrideProperty #"Score.NonMusicalPaperColumn"
1031 #'line-break-system-details
1032 #(list (cons 'alignment-extra-space (cdr (assoc 'system-stretch parameters)))
1033 (cons 'system-Y-extent (cdr (assoc 'system-Y-extent parameters))))
1037 #(define-music-function (parser location style heads music)
1038 (symbol? list-or-symbol? ly:music?)
1039 (_i "Set @var{heads} in @var{music} to @var{style}.")
1040 (style-note-heads heads style music))
1043 #(define-music-function (parser location tag arg) (symbol? ly:music?)
1045 (_i "Add @var{tag} to the @code{tags} property of @var{arg}.")
1048 (ly:music-property arg 'tags)
1050 (ly:music-property arg 'tags)))
1054 #(define-music-function (parser location beat-structure fraction)
1055 ((number-list? '()) fraction?)
1056 (_i "Set @var{fraction} as time signature, with optional
1057 number list @var{beat-structure} before it.")
1058 (make-music 'TimeSignatureMusic
1059 'numerator (car fraction)
1060 'denominator (cdr fraction)
1061 'beat-structure beat-structure))
1064 #(define-music-function (parser location fraction music)
1065 (fraction? ly:music?)
1066 (_i "Scale @var{music} in time by @var{fraction}.")
1067 (make-music 'TimeScaledMusic
1068 'element (ly:music-compress music (ly:make-moment (car fraction) (cdr fraction)))
1069 'numerator (car fraction)
1070 'denominator (cdr fraction)))
1073 #(define-music-function
1074 (parser location from to music)
1075 (ly:pitch? ly:pitch? ly:music?)
1077 (_i "Transpose @var{music} from pitch @var{from} to pitch @var{to}.")
1078 (make-music 'TransposedMusic
1079 'element (ly:music-transpose music (ly:pitch-diff to from))))
1081 transposedCueDuring =
1082 #(define-music-function
1083 (parser location what dir pitch main-music)
1084 (string? ly:dir? ly:pitch? ly:music?)
1086 (_i "Insert notes from the part @var{what} into a voice called @code{cue},
1087 using the transposition defined by @var{pitch}. This happens
1088 simultaneously with @var{main-music}, which is usually a rest. The
1089 argument @var{dir} determines whether the cue notes should be notated
1090 as a first or second voice.")
1092 (make-music 'QuoteMusic
1094 'quoted-context-type 'Voice
1095 'quoted-context-id "cue"
1096 'quoted-music-name what
1097 'quoted-voice-direction dir
1098 'quoted-transposition pitch))
1101 #(define-music-function (parser location pitch) (ly:pitch?)
1102 (_i "Set instrument transposition")
1105 (make-property-set 'instrumentTransposition
1106 (ly:pitch-negate pitch))
1110 #(define-music-function (parser location sym val arg)
1111 (symbol? scheme? ly:music?)
1112 (_i "Add @code{sym . val} to the @code{tweaks} property of @var{arg}.")
1114 (if (equal? (object-property sym 'backend-type?) #f)
1116 (ly:input-warning location (_ "cannot find property type-check for ~a") sym)
1117 (ly:warning (_ "doing assignment anyway"))))
1119 (ly:music-property arg 'tweaks)
1121 (ly:music-property arg 'tweaks)))
1127 #(define-music-function (parser location music) (ly:music?)
1128 (_i "Force any @code{\\repeat volta}, @code{\\repeat tremolo} or
1129 @code{\\repeat percent} commands in @var{music} to be interpreted
1130 as @code{\\repeat unfold}.")
1131 (unfold-repeats music))
1134 #(define-void-function (parser location arg) (scheme?)
1135 (_i "Accept a scheme argument, return a void expression.
1136 Use this if you want to have a scheme expression evaluated
1137 because of its side-effects, but its value ignored."))
1140 #(define-music-function (parser location sym val music)
1141 (symbol? scheme? ly:music?)
1142 (_i "Set @var{sym} to @var{val} in @var{music}.")
1144 (set! (ly:music-property music sym) val)